Merge tag 'asoc-v5.2' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Updates for v5.2 This is a pretty huge set of changes, it's been a pretty active release all round but the big thing with this release is the Sound Open Firmware changes from Intel, providing another DSP framework for use with the DSPs in their SoCs. This one works with the firmware of the same name which is free software (unlike the previous DSP firmwares and framework) and there has been some interest in adoption by other systems already so hopefully we will see adoption by other vendors in the future. Other highlights include: - Support for MCLK/sample rate ratio setting in the generic cards. - Support for pin switches in the generic cards. - A big set of improvements to the TLV320AIC32x4 drivers from Annaliese McDermond. - New drivers for Freescale audio mixers, several Intel machines, several Mediatek machines, Meson G12A, Sound Open Firmware and Spreadtrum compressed audio and DMA devices.
author: Takashi Iwai <tiwai@suse.de> 2019-05-06 16:14:09 +0200
committer: Takashi Iwai <tiwai@suse.de> 2019-05-06 16:14:34 +0200
commit: d81645510ce2a140816c4cb37c45b78d810ca63f (patch)
tree: edd9464900904d22a23da362bb152669480c5d26 /net
parent: 2854cd34fbab5f28a356d3667c26b7856a7b73e2 (diff)
parent: 378d590c494551a68a824b939c711bb9a280e9ef (diff)
194 files changed, 2168 insertions, 1051 deletions
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 15293c2a5dd8..8d77b6ee4477 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -443,27 +443,29 @@ static int vlan_dev_fcoe_disable(struct net_device *dev)
 	return rc;
 }
 
-static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
+static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid,
+				    struct scatterlist *sgl, unsigned int sgc)
 {
 	struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
 	const struct net_device_ops *ops = real_dev->netdev_ops;
-	int rc = -EINVAL;
+	int rc = 0;
+
+	if (ops->ndo_fcoe_ddp_target)
+		rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
 
-	if (ops->ndo_fcoe_get_wwn)
-		rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
 	return rc;
 }
+#endif
 
-static int vlan_dev_fcoe_ddp_target(struct net_device *dev, u16 xid,
-				    struct scatterlist *sgl, unsigned int sgc)
+#ifdef NETDEV_FCOE_WWNN
+static int vlan_dev_fcoe_get_wwn(struct net_device *dev, u64 *wwn, int type)
 {
 	struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
 	const struct net_device_ops *ops = real_dev->netdev_ops;
-	int rc = 0;
-
-	if (ops->ndo_fcoe_ddp_target)
-		rc = ops->ndo_fcoe_ddp_target(real_dev, xid, sgl, sgc);
+	int rc = -EINVAL;
 
+	if (ops->ndo_fcoe_get_wwn)
+		rc = ops->ndo_fcoe_get_wwn(real_dev, wwn, type);
 	return rc;
 }
 #endif
@@ -794,9 +796,11 @@ static const struct net_device_ops vlan_netdev_ops = {
 	.ndo_fcoe_ddp_done	= vlan_dev_fcoe_ddp_done,
 	.ndo_fcoe_enable	= vlan_dev_fcoe_enable,
 	.ndo_fcoe_disable	= vlan_dev_fcoe_disable,
-	.ndo_fcoe_get_wwn	= vlan_dev_fcoe_get_wwn,
 	.ndo_fcoe_ddp_target	= vlan_dev_fcoe_ddp_target,
 #endif
+#ifdef NETDEV_FCOE_WWNN
+	.ndo_fcoe_get_wwn	= vlan_dev_fcoe_get_wwn,
+#endif
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller	= vlan_dev_poll_controller,
 	.ndo_netpoll_setup	= vlan_dev_netpoll_setup,
diff --git a/net/appletalk/aarp.c b/net/appletalk/aarp.c
index 49a16cee2aae..420a98bf79b5 100644
--- a/net/appletalk/aarp.c
+++ b/net/appletalk/aarp.c
@@ -879,15 +879,24 @@ static struct notifier_block aarp_notifier = {
 
 static unsigned char aarp_snap_id[] = { 0x00, 0x00, 0x00, 0x80, 0xF3 };
 
-void __init aarp_proto_init(void)
+int __init aarp_proto_init(void)
 {
+	int rc;
+
 	aarp_dl = register_snap_client(aarp_snap_id, aarp_rcv);
-	if (!aarp_dl)
+	if (!aarp_dl) {
 		printk(KERN_CRIT "Unable to register AARP with SNAP.\n");
+		return -ENOMEM;
+	}
 	timer_setup(&aarp_timer, aarp_expire_timeout, 0);
 	aarp_timer.expires  = jiffies + sysctl_aarp_expiry_time;
 	add_timer(&aarp_timer);
-	register_netdevice_notifier(&aarp_notifier);
+	rc = register_netdevice_notifier(&aarp_notifier);
+	if (rc) {
+		del_timer_sync(&aarp_timer);
+		unregister_snap_client(aarp_dl);
+	}
+	return rc;
 }
 
 /* Remove the AARP entries associated with a device. */
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 795fbc6c06aa..dbe8b1993be9 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1904,9 +1904,6 @@ static unsigned char ddp_snap_id[] = { 0x08, 0x00, 0x07, 0x80, 0x9B };
 EXPORT_SYMBOL(atrtr_get_dev);
 EXPORT_SYMBOL(atalk_find_dev_addr);
 
-static const char atalk_err_snap[] __initconst =
-	KERN_CRIT "Unable to register DDP with SNAP.\n";
-
 /* Called by proto.c on kernel start up */
 static int __init atalk_init(void)
 {
@@ -1921,17 +1918,23 @@ static int __init atalk_init(void)
 		goto out_proto;
 
 	ddp_dl = register_snap_client(ddp_snap_id, atalk_rcv);
-	if (!ddp_dl)
-		printk(atalk_err_snap);
+	if (!ddp_dl) {
+		pr_crit("Unable to register DDP with SNAP.\n");
+		rc = -ENOMEM;
+		goto out_sock;
+	}
 
 	dev_add_pack(&ltalk_packet_type);
 	dev_add_pack(&ppptalk_packet_type);
 
 	rc = register_netdevice_notifier(&ddp_notifier);
 	if (rc)
-		goto out_sock;
+		goto out_snap;
+
+	rc = aarp_proto_init();
+	if (rc)
+		goto out_dev;
 
-	aarp_proto_init();
 	rc = atalk_proc_init();
 	if (rc)
 		goto out_aarp;
@@ -1945,11 +1948,13 @@ out_proc:
 	atalk_proc_exit();
 out_aarp:
 	aarp_cleanup_module();
+out_dev:
 	unregister_netdevice_notifier(&ddp_notifier);
-out_sock:
+out_snap:
 	dev_remove_pack(&ppptalk_packet_type);
 	dev_remove_pack(&ltalk_packet_type);
 	unregister_snap_client(ddp_dl);
+out_sock:
 	sock_unregister(PF_APPLETALK);
 out_proto:
 	proto_unregister(&ddp_proto);
diff --git a/net/atm/lec.c b/net/atm/lec.c
index d7f5cf5b7594..ad4f829193f0 100644
--- a/net/atm/lec.c
+++ b/net/atm/lec.c
@@ -710,7 +710,10 @@ static int lec_vcc_attach(struct atm_vcc *vcc, void __user *arg)
 
 static int lec_mcast_attach(struct atm_vcc *vcc, int arg)
 {
-	if (arg < 0 || arg >= MAX_LEC_ITF || !dev_lec[arg])
+	if (arg < 0 || arg >= MAX_LEC_ITF)
+		return -EINVAL;
+	arg = array_index_nospec(arg, MAX_LEC_ITF);
+	if (!dev_lec[arg])
 		return -EINVAL;
 	vcc->proto_data = dev_lec[arg];
 	return lec_mcast_make(netdev_priv(dev_lec[arg]), vcc);
@@ -728,6 +731,7 @@ static int lecd_attach(struct atm_vcc *vcc, int arg)
 		i = arg;
 	if (arg >= MAX_LEC_ITF)
 		return -EINVAL;
+	i = array_index_nospec(arg, MAX_LEC_ITF);
 	if (!dev_lec[i]) {
 		int size;
 
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index a9b7919c9de5..d5df0114f08a 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -104,8 +104,10 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
 
 		ret = cfg80211_get_station(real_netdev, neigh->addr, &sinfo);
 
-		/* free the TID stats immediately */
-		cfg80211_sinfo_release_content(&sinfo);
+		if (!ret) {
+			/* free the TID stats immediately */
+			cfg80211_sinfo_release_content(&sinfo);
+		}
 
 		dev_put(real_netdev);
 		if (ret == -ENOENT) {
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index ef39aabdb694..4fb01108e5f5 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -803,6 +803,8 @@ static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
 				 const u8 *mac, const unsigned short vid)
 {
 	struct batadv_bla_claim search_claim, *claim;
+	struct batadv_bla_claim *claim_removed_entry;
+	struct hlist_node *claim_removed_node;
 
 	ether_addr_copy(search_claim.addr, mac);
 	search_claim.vid = vid;
@@ -813,10 +815,18 @@ static void batadv_bla_del_claim(struct batadv_priv *bat_priv,
 	batadv_dbg(BATADV_DBG_BLA, bat_priv, "%s(): %pM, vid %d\n", __func__,
 		   mac, batadv_print_vid(vid));
 
-	batadv_hash_remove(bat_priv->bla.claim_hash, batadv_compare_claim,
-			   batadv_choose_claim, claim);
-	batadv_claim_put(claim); /* reference from the hash is gone */
+	claim_removed_node = batadv_hash_remove(bat_priv->bla.claim_hash,
+						batadv_compare_claim,
+						batadv_choose_claim, claim);
+	if (!claim_removed_node)
+		goto free_claim;
 
+	/* reference from the hash is gone */
+	claim_removed_entry = hlist_entry(claim_removed_node,
+					  struct batadv_bla_claim, hash_entry);
+	batadv_claim_put(claim_removed_entry);
+
+free_claim:
 	/* don't need the reference from hash_find() anymore */
 	batadv_claim_put(claim);
 }
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 0b4b3fb778a6..208655cf6717 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -1116,9 +1116,9 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
 						struct attribute *attr,
 						char *buff, size_t count)
 {
-	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
 	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
 	struct batadv_hard_iface *hard_iface;
+	struct batadv_priv *bat_priv;
 	u32 tp_override;
 	u32 old_tp_override;
 	bool ret;
@@ -1147,7 +1147,10 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
 
 	atomic_set(&hard_iface->bat_v.throughput_override, tp_override);
 
-	batadv_netlink_notify_hardif(bat_priv, hard_iface);
+	if (hard_iface->soft_iface) {
+		bat_priv = netdev_priv(hard_iface->soft_iface);
+		batadv_netlink_notify_hardif(bat_priv, hard_iface);
+	}
 
 out:
 	batadv_hardif_put(hard_iface);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index f73d79139ae7..26c4e2493ddf 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -616,14 +616,26 @@ static void batadv_tt_global_free(struct batadv_priv *bat_priv,
 				  struct batadv_tt_global_entry *tt_global,
 				  const char *message)
 {
+	struct batadv_tt_global_entry *tt_removed_entry;
+	struct hlist_node *tt_removed_node;
+
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Deleting global tt entry %pM (vid: %d): %s\n",
 		   tt_global->common.addr,
 		   batadv_print_vid(tt_global->common.vid), message);
 
-	batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
-			   batadv_choose_tt, &tt_global->common);
-	batadv_tt_global_entry_put(tt_global);
+	tt_removed_node = batadv_hash_remove(bat_priv->tt.global_hash,
+					     batadv_compare_tt,
+					     batadv_choose_tt,
+					     &tt_global->common);
+	if (!tt_removed_node)
+		return;
+
+	/* drop reference of remove hash entry */
+	tt_removed_entry = hlist_entry(tt_removed_node,
+				       struct batadv_tt_global_entry,
+				       common.hash_entry);
+	batadv_tt_global_entry_put(tt_removed_entry);
 }
 
 /**
@@ -1337,9 +1349,10 @@ u16 batadv_tt_local_remove(struct batadv_priv *bat_priv, const u8 *addr,
 			   unsigned short vid, const char *message,
 			   bool roaming)
 {
+	struct batadv_tt_local_entry *tt_removed_entry;
 	struct batadv_tt_local_entry *tt_local_entry;
 	u16 flags, curr_flags = BATADV_NO_FLAGS;
-	void *tt_entry_exists;
+	struct hlist_node *tt_removed_node;
 
 	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr, vid);
 	if (!tt_local_entry)
@@ -1368,15 +1381,18 @@ u16 batadv_tt_local_remove(struct batadv_priv *bat_priv, const u8 *addr,
 	 */
 	batadv_tt_local_event(bat_priv, tt_local_entry, BATADV_TT_CLIENT_DEL);
 
-	tt_entry_exists = batadv_hash_remove(bat_priv->tt.local_hash,
+	tt_removed_node = batadv_hash_remove(bat_priv->tt.local_hash,
 					     batadv_compare_tt,
 					     batadv_choose_tt,
 					     &tt_local_entry->common);
-	if (!tt_entry_exists)
+	if (!tt_removed_node)
 		goto out;
 
-	/* extra call to free the local tt entry */
-	batadv_tt_local_entry_put(tt_local_entry);
+	/* drop reference of remove hash entry */
+	tt_removed_entry = hlist_entry(tt_removed_node,
+				       struct batadv_tt_local_entry,
+				       common.hash_entry);
+	batadv_tt_local_entry_put(tt_removed_entry);
 
 out:
 	if (tt_local_entry)
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 9a580999ca57..d892b7c3cc42 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -523,12 +523,12 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr,
 	struct sock *sk = sock->sk;
 	int err = 0;
 
-	BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);
-
 	if (!addr || addr_len < sizeof(struct sockaddr_sco) ||
 	    addr->sa_family != AF_BLUETOOTH)
 		return -EINVAL;
 
+	BT_DBG("sk %p %pMR", sk, &sa->sco_bdaddr);
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 5ea7e56119c1..ba303ee99b9b 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -197,13 +197,10 @@ static void __br_handle_local_finish(struct sk_buff *skb)
 /* note: already called with rcu_read_lock */
 static int br_handle_local_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
-	struct net_bridge_port *p = br_port_get_rcu(skb->dev);
-
 	__br_handle_local_finish(skb);
 
-	BR_INPUT_SKB_CB(skb)->brdev = p->br->dev;
-	br_pass_frame_up(skb);
-	return 0;
+	/* return 1 to signal the okfn() was called so it's ok to use the skb */
+	return 1;
 }
 
 /*
@@ -280,10 +277,18 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
 				goto forward;
 		}
 
-		/* Deliver packet to local host only */
-		NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, dev_net(skb->dev),
-			NULL, skb, skb->dev, NULL, br_handle_local_finish);
-		return RX_HANDLER_CONSUMED;
+		/* The else clause should be hit when nf_hook():
+		 *   - returns < 0 (drop/error)
+		 *   - returns = 0 (stolen/nf_queue)
+		 * Thus return 1 from the okfn() to signal the skb is ok to pass
+		 */
+		if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN,
+			    dev_net(skb->dev), NULL, skb, skb->dev, NULL,
+			    br_handle_local_finish) == 1) {
+			return RX_HANDLER_PASS;
+		} else {
+			return RX_HANDLER_CONSUMED;
+		}
 	}
 
 forward:
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index a0e369179f6d..45e7f4173bba 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -601,6 +601,7 @@ static int br_ip4_multicast_add_group(struct net_bridge *br,
 	if (ipv4_is_local_multicast(group))
 		return 0;
 
+	memset(&br_group, 0, sizeof(br_group));
 	br_group.u.ip4 = group;
 	br_group.proto = htons(ETH_P_IP);
 	br_group.vid = vid;
@@ -1497,6 +1498,7 @@ static void br_ip4_multicast_leave_group(struct net_bridge *br,
 
 	own_query = port ? &port->ip4_own_query : &br->ip4_own_query;
 
+	memset(&br_group, 0, sizeof(br_group));
 	br_group.u.ip4 = group;
 	br_group.proto = htons(ETH_P_IP);
 	br_group.vid = vid;
@@ -1520,6 +1522,7 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
 
 	own_query = port ? &port->ip6_own_query : &br->ip6_own_query;
 
+	memset(&br_group, 0, sizeof(br_group));
 	br_group.u.ip6 = *group;
 	br_group.proto = htons(ETH_P_IPV6);
 	br_group.vid = vid;
@@ -2028,7 +2031,8 @@ static void br_multicast_start_querier(struct net_bridge *br,
 
 	__br_multicast_open(br, query);
 
-	list_for_each_entry(port, &br->port_list, list) {
+	rcu_read_lock();
+	list_for_each_entry_rcu(port, &br->port_list, list) {
 		if (port->state == BR_STATE_DISABLED ||
 		    port->state == BR_STATE_BLOCKING)
 			continue;
@@ -2040,6 +2044,7 @@ static void br_multicast_start_querier(struct net_bridge *br,
 			br_multicast_enable(&port->ip6_own_query);
 #endif
 	}
+	rcu_read_unlock();
 }
 
 int br_multicast_toggle(struct net_bridge *br, unsigned long val)
diff --git a/net/bridge/br_netfilter_hooks.c b/net/bridge/br_netfilter_hooks.c
index 9d34de68571b..22afa566cbce 100644
--- a/net/bridge/br_netfilter_hooks.c
+++ b/net/bridge/br_netfilter_hooks.c
@@ -502,6 +502,7 @@ static unsigned int br_nf_pre_routing(void *priv,
 	nf_bridge->ipv4_daddr = ip_hdr(skb)->daddr;
 
 	skb->protocol = htons(ETH_P_IP);
+	skb->transport_header = skb->network_header + ip_hdr(skb)->ihl * 4;
 
 	NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->net, state->sk, skb,
 		skb->dev, NULL,
diff --git a/net/bridge/br_netfilter_ipv6.c b/net/bridge/br_netfilter_ipv6.c
index 564710f88f93..e88d6641647b 100644
--- a/net/bridge/br_netfilter_ipv6.c
+++ b/net/bridge/br_netfilter_ipv6.c
@@ -235,6 +235,8 @@ unsigned int br_nf_pre_routing_ipv6(void *priv,
 	nf_bridge->ipv6_daddr = ipv6_hdr(skb)->daddr;
 
 	skb->protocol = htons(ETH_P_IPV6);
+	skb->transport_header = skb->network_header + sizeof(struct ipv6hdr);
+
 	NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->net, state->sk, skb,
 		skb->dev, NULL,
 		br_nf_pre_routing_finish_ipv6);
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 9c07591b0232..7104cf13da84 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -1441,7 +1441,7 @@ static int br_fill_info(struct sk_buff *skb, const struct net_device *brdev)
 	    nla_put_u8(skb, IFLA_BR_VLAN_STATS_ENABLED,
 		       br_opt_get(br, BROPT_VLAN_STATS_ENABLED)) ||
 	    nla_put_u8(skb, IFLA_BR_VLAN_STATS_PER_PORT,
-		       br_opt_get(br, IFLA_BR_VLAN_STATS_PER_PORT)))
+		       br_opt_get(br, BROPT_VLAN_STATS_PER_PORT)))
 		return -EMSGSIZE;
 #endif
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index eb15891f8b9f..3cad01ac64e4 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -2032,7 +2032,8 @@ static int ebt_size_mwt(struct compat_ebt_entry_mwt *match32,
 		if (match_kern)
 			match_kern->match_size = ret;
 
-		if (WARN_ON(type == EBT_COMPAT_TARGET && size_left))
+		/* rule should have no remaining data after target */
+		if (type == EBT_COMPAT_TARGET && size_left)
 			return -EINVAL;
 
 		match32 = (struct compat_ebt_entry_mwt *) buf;
diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c
index 9cab80207ced..79eac465ec65 100644
--- a/net/ceph/ceph_common.c
+++ b/net/ceph/ceph_common.c
@@ -738,7 +738,6 @@ int __ceph_open_session(struct ceph_client *client, unsigned long started)
 }
 EXPORT_SYMBOL(__ceph_open_session);
 
-
 int ceph_open_session(struct ceph_client *client)
 {
 	int ret;
@@ -754,6 +753,23 @@ int ceph_open_session(struct ceph_client *client)
 }
 EXPORT_SYMBOL(ceph_open_session);
 
+int ceph_wait_for_latest_osdmap(struct ceph_client *client,
+				unsigned long timeout)
+{
+	u64 newest_epoch;
+	int ret;
+
+	ret = ceph_monc_get_version(&client->monc, "osdmap", &newest_epoch);
+	if (ret)
+		return ret;
+
+	if (client->osdc.osdmap->epoch >= newest_epoch)
+		return 0;
+
+	ceph_osdc_maybe_request_map(&client->osdc);
+	return ceph_monc_wait_osdmap(&client->monc, newest_epoch, timeout);
+}
+EXPORT_SYMBOL(ceph_wait_for_latest_osdmap);
 
 static int __init init_ceph_lib(void)
 {
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 7e71b0df1fbc..3083988ce729 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -840,6 +840,7 @@ static bool ceph_msg_data_bio_advance(struct ceph_msg_data_cursor *cursor,
 					size_t bytes)
 {
 	struct ceph_bio_iter *it = &cursor->bio_iter;
+	struct page *page = bio_iter_page(it->bio, it->iter);
 
 	BUG_ON(bytes > cursor->resid);
 	BUG_ON(bytes > bio_iter_len(it->bio, it->iter));
@@ -851,7 +852,8 @@ static bool ceph_msg_data_bio_advance(struct ceph_msg_data_cursor *cursor,
 		return false;   /* no more data */
 	}
 
-	if (!bytes || (it->iter.bi_size && it->iter.bi_bvec_done))
+	if (!bytes || (it->iter.bi_size && it->iter.bi_bvec_done &&
+		       page == bio_iter_page(it->bio, it->iter)))
 		return false;	/* more bytes to process in this segment */
 
 	if (!it->iter.bi_size) {
@@ -899,6 +901,7 @@ static bool ceph_msg_data_bvecs_advance(struct ceph_msg_data_cursor *cursor,
 					size_t bytes)
 {
 	struct bio_vec *bvecs = cursor->data->bvec_pos.bvecs;
+	struct page *page = bvec_iter_page(bvecs, cursor->bvec_iter);
 
 	BUG_ON(bytes > cursor->resid);
 	BUG_ON(bytes > bvec_iter_len(bvecs, cursor->bvec_iter));
@@ -910,7 +913,8 @@ static bool ceph_msg_data_bvecs_advance(struct ceph_msg_data_cursor *cursor,
 		return false;   /* no more data */
 	}
 
-	if (!bytes || cursor->bvec_iter.bi_bvec_done)
+	if (!bytes || (cursor->bvec_iter.bi_bvec_done &&
+		       page == bvec_iter_page(bvecs, cursor->bvec_iter)))
 		return false;	/* more bytes to process in this segment */
 
 	BUG_ON(cursor->last_piece);
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 18deb3d889c4..a53e4fbb6319 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -922,6 +922,15 @@ int ceph_monc_blacklist_add(struct ceph_mon_client *monc,
 	mutex_unlock(&monc->mutex);
 
 	ret = wait_generic_request(req);
+	if (!ret)
+		/*
+		 * Make sure we have the osdmap that includes the blacklist
+		 * entry.  This is needed to ensure that the OSDs pick up the
+		 * new blacklist before processing any future requests from
+		 * this client.
+		 */
+		ret = ceph_wait_for_latest_osdmap(monc->client, 0);
+
 out:
 	put_generic_request(req);
 	return ret;
diff --git a/net/core/datagram.c b/net/core/datagram.c
index b2651bb6d2a3..e657289db4ac 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -279,7 +279,7 @@ struct sk_buff *__skb_try_recv_datagram(struct sock *sk, unsigned int flags,
 			break;
 
 		sk_busy_loop(sk, flags & MSG_DONTWAIT);
-	} while (!skb_queue_empty(&sk->sk_receive_queue));
+	} while (sk->sk_receive_queue.prev != *last);
 
 	error = -EAGAIN;
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 2b67f2aa59dd..f409406254dd 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1184,7 +1184,21 @@ int dev_change_name(struct net_device *dev, const char *newname)
 	BUG_ON(!dev_net(dev));
 
 	net = dev_net(dev);
-	if (dev->flags & IFF_UP)
+
+	/* Some auto-enslaved devices e.g. failover slaves are
+	 * special, as userspace might rename the device after
+	 * the interface had been brought up and running since
+	 * the point kernel initiated auto-enslavement. Allow
+	 * live name change even when these slave devices are
+	 * up and running.
+	 *
+	 * Typically, users of these auto-enslaving devices
+	 * don't actually care about slave name change, as
+	 * they are supposed to operate on master interface
+	 * directly.
+	 */
+	if (dev->flags & IFF_UP &&
+	    likely(!(dev->priv_flags & IFF_LIVE_RENAME_OK)))
 		return -EBUSY;
 
 	write_seqcount_begin(&devnet_rename_seq);
@@ -5014,8 +5028,10 @@ static inline void __netif_receive_skb_list_ptype(struct list_head *head,
 	if (pt_prev->list_func != NULL)
 		pt_prev->list_func(head, pt_prev, orig_dev);
 	else
-		list_for_each_entry_safe(skb, next, head, list)
+		list_for_each_entry_safe(skb, next, head, list) {
+			skb_list_del_init(skb);
 			pt_prev->func(skb, skb->dev, pt_prev, orig_dev);
+		}
 }
 
 static void __netif_receive_skb_list_core(struct list_head *head, bool pfmemalloc)
diff --git a/net/core/devlink.c b/net/core/devlink.c
index 78e22cea4cc7..da0a29f30885 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -3897,6 +3897,11 @@ static int devlink_nl_cmd_info_get_dumpit(struct sk_buff *msg,
 			continue;
 		}
 
+		if (!devlink->ops->info_get) {
+			idx++;
+			continue;
+		}
+
 		mutex_lock(&devlink->lock);
 		err = devlink_nl_info_fill(msg, devlink, DEVLINK_CMD_INFO_GET,
 					   NETLINK_CB(cb->skb).portid,
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index b1eb32419732..36ed619faf36 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -1797,11 +1797,16 @@ static int ethtool_get_strings(struct net_device *dev, void __user *useraddr)
 	WARN_ON_ONCE(!ret);
 
 	gstrings.len = ret;
-	data = vzalloc(array_size(gstrings.len, ETH_GSTRING_LEN));
-	if (gstrings.len && !data)
-		return -ENOMEM;
 
-	__ethtool_get_strings(dev, gstrings.string_set, data);
+	if (gstrings.len) {
+		data = vzalloc(array_size(gstrings.len, ETH_GSTRING_LEN));
+		if (!data)
+			return -ENOMEM;
+
+		__ethtool_get_strings(dev, gstrings.string_set, data);
+	} else {
+		data = NULL;
+	}
 
 	ret = -EFAULT;
 	if (copy_to_user(useraddr, &gstrings, sizeof(gstrings)))
@@ -1897,11 +1902,15 @@ static int ethtool_get_stats(struct net_device *dev, void __user *useraddr)
 		return -EFAULT;
 
 	stats.n_stats = n_stats;
-	data = vzalloc(array_size(n_stats, sizeof(u64)));
-	if (n_stats && !data)
-		return -ENOMEM;
 
-	ops->get_ethtool_stats(dev, &stats, data);
+	if (n_stats) {
+		data = vzalloc(array_size(n_stats, sizeof(u64)));
+		if (!data)
+			return -ENOMEM;
+		ops->get_ethtool_stats(dev, &stats, data);
+	} else {
+		data = NULL;
+	}
 
 	ret = -EFAULT;
 	if (copy_to_user(useraddr, &stats, sizeof(stats)))
@@ -1941,16 +1950,21 @@ static int ethtool_get_phy_stats(struct net_device *dev, void __user *useraddr)
 		return -EFAULT;
 
 	stats.n_stats = n_stats;
-	data = vzalloc(array_size(n_stats, sizeof(u64)));
-	if (n_stats && !data)
-		return -ENOMEM;
 
-	if (dev->phydev && !ops->get_ethtool_phy_stats) {
-		ret = phy_ethtool_get_stats(dev->phydev, &stats, data);
-		if (ret < 0)
-			return ret;
+	if (n_stats) {
+		data = vzalloc(array_size(n_stats, sizeof(u64)));
+		if (!data)
+			return -ENOMEM;
+
+		if (dev->phydev && !ops->get_ethtool_phy_stats) {
+			ret = phy_ethtool_get_stats(dev->phydev, &stats, data);
+			if (ret < 0)
+				goto out;
+		} else {
+			ops->get_ethtool_phy_stats(dev, &stats, data);
+		}
 	} else {
-		ops->get_ethtool_phy_stats(dev, &stats, data);
+		data = NULL;
 	}
 
 	ret = -EFAULT;
diff --git a/net/core/failover.c b/net/core/failover.c
index 4a92a98ccce9..b5cd3c727285 100644
--- a/net/core/failover.c
+++ b/net/core/failover.c
@@ -80,14 +80,14 @@ static int failover_slave_register(struct net_device *slave_dev)
 		goto err_upper_link;
 	}
 
-	slave_dev->priv_flags |= IFF_FAILOVER_SLAVE;
+	slave_dev->priv_flags |= (IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
 
 	if (fops && fops->slave_register &&
 	    !fops->slave_register(slave_dev, failover_dev))
 		return NOTIFY_OK;
 
 	netdev_upper_dev_unlink(slave_dev, failover_dev);
-	slave_dev->priv_flags &= ~IFF_FAILOVER_SLAVE;
+	slave_dev->priv_flags &= ~(IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
 err_upper_link:
 	netdev_rx_handler_unregister(slave_dev);
 done:
@@ -121,7 +121,7 @@ int failover_slave_unregister(struct net_device *slave_dev)
 
 	netdev_rx_handler_unregister(slave_dev);
 	netdev_upper_dev_unlink(slave_dev, failover_dev);
-	slave_dev->priv_flags &= ~IFF_FAILOVER_SLAVE;
+	slave_dev->priv_flags &= ~(IFF_FAILOVER_SLAVE | IFF_LIVE_RENAME_OK);
 
 	if (fops && fops->slave_unregister &&
 	    !fops->slave_unregister(slave_dev, failover_dev))
diff --git a/net/core/filter.c b/net/core/filter.c
index f274620945ff..27e61ffd9039 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -1796,8 +1796,6 @@ static const struct bpf_func_proto bpf_skb_pull_data_proto = {
 
 BPF_CALL_1(bpf_sk_fullsock, struct sock *, sk)
 {
-	sk = sk_to_full_sk(sk);
-
 	return sk_fullsock(sk) ? (unsigned long)sk : (unsigned long)NULL;
 }
 
@@ -4385,6 +4383,8 @@ BPF_CALL_3(bpf_bind, struct bpf_sock_addr_kern *, ctx, struct sockaddr *, addr,
 	 * Only binding to IP is supported.
 	 */
 	err = -EINVAL;
+	if (addr_len < offsetofend(struct sockaddr, sa_family))
+		return err;
 	if (addr->sa_family == AF_INET) {
 		if (addr_len < sizeof(struct sockaddr_in))
 			return err;
@@ -5266,7 +5266,7 @@ static const struct bpf_func_proto bpf_sk_release_proto = {
 	.func		= bpf_sk_release,
 	.gpl_only	= false,
 	.ret_type	= RET_INTEGER,
-	.arg1_type	= ARG_PTR_TO_SOCKET,
+	.arg1_type	= ARG_PTR_TO_SOCK_COMMON,
 };
 
 BPF_CALL_5(bpf_xdp_sk_lookup_udp, struct xdp_buff *, ctx,
@@ -5407,8 +5407,6 @@ u32 bpf_tcp_sock_convert_ctx_access(enum bpf_access_type type,
 
 BPF_CALL_1(bpf_tcp_sock, struct sock *, sk)
 {
-	sk = sk_to_full_sk(sk);
-
 	if (sk_fullsock(sk) && sk->sk_protocol == IPPROTO_TCP)
 		return (unsigned long)sk;
 
@@ -5422,6 +5420,23 @@ static const struct bpf_func_proto bpf_tcp_sock_proto = {
 	.arg1_type	= ARG_PTR_TO_SOCK_COMMON,
 };
 
+BPF_CALL_1(bpf_get_listener_sock, struct sock *, sk)
+{
+	sk = sk_to_full_sk(sk);
+
+	if (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_RCU_FREE))
+		return (unsigned long)sk;
+
+	return (unsigned long)NULL;
+}
+
+static const struct bpf_func_proto bpf_get_listener_sock_proto = {
+	.func		= bpf_get_listener_sock,
+	.gpl_only	= false,
+	.ret_type	= RET_PTR_TO_SOCKET_OR_NULL,
+	.arg1_type	= ARG_PTR_TO_SOCK_COMMON,
+};
+
 BPF_CALL_1(bpf_skb_ecn_set_ce, struct sk_buff *, skb)
 {
 	unsigned int iphdr_len;
@@ -5607,6 +5622,8 @@ cg_skb_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 #ifdef CONFIG_INET
 	case BPF_FUNC_tcp_sock:
 		return &bpf_tcp_sock_proto;
+	case BPF_FUNC_get_listener_sock:
+		return &bpf_get_listener_sock_proto;
 	case BPF_FUNC_skb_ecn_set_ce:
 		return &bpf_skb_ecn_set_ce_proto;
 #endif
@@ -5702,6 +5719,8 @@ tc_cls_act_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog)
 		return &bpf_sk_release_proto;
 	case BPF_FUNC_tcp_sock:
 		return &bpf_tcp_sock_proto;
+	case BPF_FUNC_get_listener_sock:
+		return &bpf_get_listener_sock_proto;
 #endif
 	default:
 		return bpf_base_func_proto(func_id);
@@ -6596,14 +6615,8 @@ static bool flow_dissector_is_valid_access(int off, int size,
 					   const struct bpf_prog *prog,
 					   struct bpf_insn_access_aux *info)
 {
-	if (type == BPF_WRITE) {
-		switch (off) {
-		case bpf_ctx_range_till(struct __sk_buff, cb[0], cb[4]):
-			break;
-		default:
-			return false;
-		}
-	}
+	if (type == BPF_WRITE)
+		return false;
 
 	switch (off) {
 	case bpf_ctx_range(struct __sk_buff, data):
@@ -6615,11 +6628,7 @@ static bool flow_dissector_is_valid_access(int off, int size,
 	case bpf_ctx_range_ptr(struct __sk_buff, flow_keys):
 		info->reg_type = PTR_TO_FLOW_KEYS;
 		break;
-	case bpf_ctx_range(struct __sk_buff, tc_classid):
-	case bpf_ctx_range(struct __sk_buff, data_meta):
-	case bpf_ctx_range_till(struct __sk_buff, family, local_port):
-	case bpf_ctx_range(struct __sk_buff, tstamp):
-	case bpf_ctx_range(struct __sk_buff, wire_len):
+	default:
 		return false;
 	}
 
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index bb1a54747d64..94a450b2191a 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -707,6 +707,7 @@ bool __skb_flow_bpf_dissect(struct bpf_prog *prog,
 	/* Pass parameters to the BPF program */
 	memset(flow_keys, 0, sizeof(*flow_keys));
 	cb->qdisc_cb.flow_keys = flow_keys;
+	flow_keys->n_proto = skb->protocol;
 	flow_keys->nhoff = skb_network_offset(skb);
 	flow_keys->thoff = flow_keys->nhoff;
 
@@ -716,7 +717,8 @@ bool __skb_flow_bpf_dissect(struct bpf_prog *prog,
 	/* Restore state */
 	memcpy(cb, &cb_saved, sizeof(cb_saved));
 
-	flow_keys->nhoff = clamp_t(u16, flow_keys->nhoff, 0, skb->len);
+	flow_keys->nhoff = clamp_t(u16, flow_keys->nhoff,
+				   skb_network_offset(skb), skb->len);
 	flow_keys->thoff = clamp_t(u16, flow_keys->thoff,
 				   flow_keys->nhoff, skb->len);
 
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 4ff661f6f989..8f8b7b6c2945 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -928,6 +928,8 @@ static int rx_queue_add_kobject(struct net_device *dev, int index)
 	if (error)
 		return error;
 
+	dev_hold(queue->dev);
+
 	if (dev->sysfs_rx_queue_group) {
 		error = sysfs_create_group(kobj, dev->sysfs_rx_queue_group);
 		if (error) {
@@ -937,7 +939,6 @@ static int rx_queue_add_kobject(struct net_device *dev, int index)
 	}
 
 	kobject_uevent(kobj, KOBJ_ADD);
-	dev_hold(queue->dev);
 
 	return error;
 }
@@ -1464,6 +1465,8 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index)
 	if (error)
 		return error;
 
+	dev_hold(queue->dev);
+
 #ifdef CONFIG_BQL
 	error = sysfs_create_group(kobj, &dql_group);
 	if (error) {
@@ -1473,7 +1476,6 @@ static int netdev_queue_add_kobject(struct net_device *dev, int index)
 #endif
 
 	kobject_uevent(kobj, KOBJ_ADD);
-	dev_hold(queue->dev);
 
 	return 0;
 }
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 17f36317363d..7e6dcc625701 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -304,6 +304,7 @@ static __net_init int setup_net(struct net *net, struct user_namespace *user_ns)
 
 	refcount_set(&net->count, 1);
 	refcount_set(&net->passive, 1);
+	get_random_bytes(&net->hash_mix, sizeof(u32));
 	net->dev_base_seq = 1;
 	net->user_ns = user_ns;
 	idr_init(&net->netns_ids);
diff --git a/net/core/ptp_classifier.c b/net/core/ptp_classifier.c
index 703cf76aa7c2..7109c168b5e0 100644
--- a/net/core/ptp_classifier.c
+++ b/net/core/ptp_classifier.c
@@ -185,9 +185,10 @@ void __init ptp_classifier_init(void)
 		{ 0x16,  0,  0, 0x00000000 },
 		{ 0x06,  0,  0, 0x00000000 },
 	};
-	struct sock_fprog_kern ptp_prog = {
-		.len = ARRAY_SIZE(ptp_filter), .filter = ptp_filter,
-	};
+	struct sock_fprog_kern ptp_prog;
+
+	ptp_prog.len = ARRAY_SIZE(ptp_filter);
+	ptp_prog.filter = ptp_filter;
 
 	BUG_ON(bpf_prog_create(&ptp_insns, &ptp_prog));
 }
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index a51cab95ba64..220c56e93659 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -4948,7 +4948,7 @@ static int rtnl_valid_stats_req(const struct nlmsghdr *nlh, bool strict_check,
 {
 	struct if_stats_msg *ifsm;
 
-	if (nlh->nlmsg_len < sizeof(*ifsm)) {
+	if (nlh->nlmsg_len < nlmsg_msg_size(sizeof(*ifsm))) {
 		NL_SET_ERR_MSG(extack, "Invalid header for stats dump");
 		return -EINVAL;
 	}
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2415d9cb9b89..40796b8bf820 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -3801,7 +3801,7 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
 	unsigned int delta_truesize;
 	struct sk_buff *lp;
 
-	if (unlikely(p->len + len >= 65536))
+	if (unlikely(p->len + len >= 65536 || NAPI_GRO_CB(skb)->flush))
 		return -E2BIG;
 
 	lp = NAPI_GRO_CB(p)->last;
@@ -5083,7 +5083,8 @@ EXPORT_SYMBOL_GPL(skb_gso_validate_mac_len);
 
 static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
 {
-	int mac_len;
+	int mac_len, meta_len;
+	void *meta;
 
 	if (skb_cow(skb, skb_headroom(skb)) < 0) {
 		kfree_skb(skb);
@@ -5095,6 +5096,13 @@ static struct sk_buff *skb_reorder_vlan_header(struct sk_buff *skb)
 		memmove(skb_mac_header(skb) + VLAN_HLEN, skb_mac_header(skb),
 			mac_len - VLAN_HLEN - ETH_TLEN);
 	}
+
+	meta_len = skb_metadata_len(skb);
+	if (meta_len) {
+		meta = skb_metadata_end(skb) - meta_len;
+		memmove(meta + VLAN_HLEN, meta, meta_len);
+	}
+
 	skb->mac_header += VLAN_HLEN;
 	return skb;
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index 782343bb925b..067878a1e4c5 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -348,7 +348,7 @@ static int sock_get_timeout(long timeo, void *optval, bool old_timeval)
 		tv.tv_usec = ((timeo % HZ) * USEC_PER_SEC) / HZ;
 	}
 
-	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
+	if (old_timeval && in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct old_timeval32 tv32 = { tv.tv_sec, tv.tv_usec };
 		*(struct old_timeval32 *)optval = tv32;
 		return sizeof(tv32);
@@ -372,7 +372,7 @@ static int sock_set_timeout(long *timeo_p, char __user *optval, int optlen, bool
 {
 	struct __kernel_sock_timeval tv;
 
-	if (in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
+	if (old_timeval && in_compat_syscall() && !COMPAT_USE_64BIT_TIME) {
 		struct old_timeval32 tv32;
 
 		if (optlen < sizeof(tv32))
diff --git a/net/dccp/feat.c b/net/dccp/feat.c
index f227f002c73d..db87d9f58019 100644
--- a/net/dccp/feat.c
+++ b/net/dccp/feat.c
@@ -738,7 +738,12 @@ static int __feat_register_sp(struct list_head *fn, u8 feat, u8 is_local,
 	if (dccp_feat_clone_sp_val(&fval, sp_val, sp_len))
 		return -ENOMEM;
 
-	return dccp_feat_push_change(fn, feat, is_local, mandatory, &fval);
+	if (dccp_feat_push_change(fn, feat, is_local, mandatory, &fval)) {
+		kfree(fval.sp.vec);
+		return -ENOMEM;
+	}
+
+	return 0;
 }
 
 /**
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index d5740bad5b18..57d84e9b7b6f 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -436,8 +436,8 @@ static struct sock *dccp_v6_request_recv_sock(const struct sock *sk,
 		newnp->ipv6_mc_list = NULL;
 		newnp->ipv6_ac_list = NULL;
 		newnp->ipv6_fl_list = NULL;
-		newnp->mcast_oif   = inet6_iif(skb);
-		newnp->mcast_hops  = ipv6_hdr(skb)->hop_limit;
+		newnp->mcast_oif   = inet_iif(skb);
+		newnp->mcast_hops  = ip_hdr(skb)->ttl;
 
 		/*
 		 * No need to charge this sock to the relevant IPv6 refcnt debug socks count
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index ed4f6dc26365..85c22ada4744 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -98,8 +98,18 @@ static struct sk_buff *qca_tag_rcv(struct sk_buff *skb, struct net_device *dev,
 	return skb;
 }
 
+static int qca_tag_flow_dissect(const struct sk_buff *skb, __be16 *proto,
+                                int *offset)
+{
+	*offset = QCA_HDR_LEN;
+	*proto = ((__be16 *)skb->data)[0];
+
+	return 0;
+}
+
 const struct dsa_device_ops qca_netdev_ops = {
 	.xmit	= qca_tag_xmit,
 	.rcv	= qca_tag_rcv,
+	.flow_dissect = qca_tag_flow_dissect,
 	.overhead = QCA_HDR_LEN,
 };
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 10e809b296ec..fb065a8937ea 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -226,7 +226,7 @@ static void esp_output_fill_trailer(u8 *tail, int tfclen, int plen, __u8 proto)
 	tail[plen - 1] = proto;
 }
 
-static void esp_output_udp_encap(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp)
+static int esp_output_udp_encap(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp)
 {
 	int encap_type;
 	struct udphdr *uh;
@@ -234,6 +234,7 @@ static void esp_output_udp_encap(struct xfrm_state *x, struct sk_buff *skb, stru
 	__be16 sport, dport;
 	struct xfrm_encap_tmpl *encap = x->encap;
 	struct ip_esp_hdr *esph = esp->esph;
+	unsigned int len;
 
 	spin_lock_bh(&x->lock);
 	sport = encap->encap_sport;
@@ -241,11 +242,14 @@ static void esp_output_udp_encap(struct xfrm_state *x, struct sk_buff *skb, stru
 	encap_type = encap->encap_type;
 	spin_unlock_bh(&x->lock);
 
+	len = skb->len + esp->tailen - skb_transport_offset(skb);
+	if (len + sizeof(struct iphdr) >= IP_MAX_MTU)
+		return -EMSGSIZE;
+
 	uh = (struct udphdr *)esph;
 	uh->source = sport;
 	uh->dest = dport;
-	uh->len = htons(skb->len + esp->tailen
-		  - skb_transport_offset(skb));
+	uh->len = htons(len);
 	uh->check = 0;
 
 	switch (encap_type) {
@@ -262,6 +266,8 @@ static void esp_output_udp_encap(struct xfrm_state *x, struct sk_buff *skb, stru
 
 	*skb_mac_header(skb) = IPPROTO_UDP;
 	esp->esph = esph;
+
+	return 0;
 }
 
 int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *esp)
@@ -275,8 +281,12 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
 	int tailen = esp->tailen;
 
 	/* this is non-NULL only with UDP Encapsulation */
-	if (x->encap)
-		esp_output_udp_encap(x, skb, esp);
+	if (x->encap) {
+		int err = esp_output_udp_encap(x, skb, esp);
+
+		if (err < 0)
+			return err;
+	}
 
 	if (!skb_cloned(skb)) {
 		if (tailen <= skb_tailroom(skb)) {
diff --git a/net/ipv4/esp4_offload.c b/net/ipv4/esp4_offload.c
index 8756e0e790d2..d3170a8001b2 100644
--- a/net/ipv4/esp4_offload.c
+++ b/net/ipv4/esp4_offload.c
@@ -52,13 +52,13 @@ static struct sk_buff *esp4_gro_receive(struct list_head *head,
 			goto out;
 
 		if (sp->len == XFRM_MAX_DEPTH)
-			goto out;
+			goto out_reset;
 
 		x = xfrm_state_lookup(dev_net(skb->dev), skb->mark,
 				      (xfrm_address_t *)&ip_hdr(skb)->daddr,
 				      spi, IPPROTO_ESP, AF_INET);
 		if (!x)
-			goto out;
+			goto out_reset;
 
 		sp->xvec[sp->len++] = x;
 		sp->olen++;
@@ -66,7 +66,7 @@ static struct sk_buff *esp4_gro_receive(struct list_head *head,
 		xo = xfrm_offload(skb);
 		if (!xo) {
 			xfrm_state_put(x);
-			goto out;
+			goto out_reset;
 		}
 	}
 
@@ -82,6 +82,8 @@ static struct sk_buff *esp4_gro_receive(struct list_head *head,
 	xfrm_input(skb, IPPROTO_ESP, spi, -2);
 
 	return ERR_PTR(-EINPROGRESS);
+out_reset:
+	secpath_reset(skb);
 out:
 	skb_push(skb, offset);
 	NAPI_GRO_CB(skb)->same_flow = 0;
diff --git a/net/ipv4/fou.c b/net/ipv4/fou.c
index 79e98e21cdd7..12ce6c526d72 100644
--- a/net/ipv4/fou.c
+++ b/net/ipv4/fou.c
@@ -121,6 +121,7 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
 	struct guehdr *guehdr;
 	void *data;
 	u16 doffset = 0;
+	u8 proto_ctype;
 
 	if (!fou)
 		return 1;
@@ -212,13 +213,14 @@ static int gue_udp_recv(struct sock *sk, struct sk_buff *skb)
 	if (unlikely(guehdr->control))
 		return gue_control_message(skb, guehdr);
 
+	proto_ctype = guehdr->proto_ctype;
 	__skb_pull(skb, sizeof(struct udphdr) + hdrlen);
 	skb_reset_transport_header(skb);
 
 	if (iptunnel_pull_offloads(skb))
 		goto drop;
 
-	return -guehdr->proto_ctype;
+	return -proto_ctype;
 
 drop:
 	kfree_skb(skb);
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index fd219f7bd3ea..4b0526441476 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -259,7 +259,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 	struct net *net = dev_net(skb->dev);
 	struct metadata_dst *tun_dst = NULL;
 	struct erspan_base_hdr *ershdr;
-	struct erspan_metadata *pkt_md;
 	struct ip_tunnel_net *itn;
 	struct ip_tunnel *tunnel;
 	const struct iphdr *iph;
@@ -282,9 +281,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 		if (unlikely(!pskb_may_pull(skb, len)))
 			return PACKET_REJECT;
 
-		ershdr = (struct erspan_base_hdr *)(skb->data + gre_hdr_len);
-		pkt_md = (struct erspan_metadata *)(ershdr + 1);
-
 		if (__iptunnel_pull_header(skb,
 					   len,
 					   htons(ETH_P_TEB),
@@ -292,8 +288,9 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 			goto drop;
 
 		if (tunnel->collect_md) {
+			struct erspan_metadata *pkt_md, *md;
 			struct ip_tunnel_info *info;
-			struct erspan_metadata *md;
+			unsigned char *gh;
 			__be64 tun_id;
 			__be16 flags;
 
@@ -306,6 +303,14 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 			if (!tun_dst)
 				return PACKET_REJECT;
 
+			/* skb can be uncloned in __iptunnel_pull_header, so
+			 * old pkt_md is no longer valid and we need to reset
+			 * it
+			 */
+			gh = skb_network_header(skb) +
+			     skb_network_header_len(skb);
+			pkt_md = (struct erspan_metadata *)(gh + gre_hdr_len +
+							    sizeof(*ershdr));
 			md = ip_tunnel_info_opts(&tun_dst->u.tun_info);
 			md->version = ver;
 			md2 = &md->u.md2;
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index ecce2dc78f17..1132d6d1796a 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -257,11 +257,10 @@ int ip_local_deliver(struct sk_buff *skb)
 		       ip_local_deliver_finish);
 }
 
-static inline bool ip_rcv_options(struct sk_buff *skb)
+static inline bool ip_rcv_options(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_options *opt;
 	const struct iphdr *iph;
-	struct net_device *dev = skb->dev;
 
 	/* It looks as overkill, because not all
 	   IP options require packet mangling.
@@ -297,7 +296,7 @@ static inline bool ip_rcv_options(struct sk_buff *skb)
 			}
 		}
 
-		if (ip_options_rcv_srr(skb))
+		if (ip_options_rcv_srr(skb, dev))
 			goto drop;
 	}
 
@@ -353,7 +352,7 @@ static int ip_rcv_finish_core(struct net *net, struct sock *sk,
 	}
 #endif
 
-	if (iph->ihl > 5 && ip_rcv_options(skb))
+	if (iph->ihl > 5 && ip_rcv_options(skb, dev))
 		goto drop;
 
 	rt = skb_rtable(skb);
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 32a35043c9f5..3db31bb9df50 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -612,7 +612,7 @@ void ip_forward_options(struct sk_buff *skb)
 	}
 }
 
-int ip_options_rcv_srr(struct sk_buff *skb)
+int ip_options_rcv_srr(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ip_options *opt = &(IPCB(skb)->opt);
 	int srrspace, srrptr;
@@ -647,7 +647,7 @@ int ip_options_rcv_srr(struct sk_buff *skb)
 
 		orefdst = skb->_skb_refdst;
 		skb_dst_set(skb, NULL);
-		err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, skb->dev);
+		err = ip_route_input(skb, nexthop, iph->saddr, iph->tos, dev);
 		rt2 = skb_rtable(skb);
 		if (err || (rt2->rt_type != RTN_UNICAST && rt2->rt_type != RTN_LOCAL)) {
 			skb_dst_drop(skb);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index c80188875f39..e8bb2e85c5a4 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -519,6 +519,7 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
 	to->pkt_type = from->pkt_type;
 	to->priority = from->priority;
 	to->protocol = from->protocol;
+	to->skb_iif = from->skb_iif;
 	skb_dst_drop(to);
 	skb_dst_copy(to, from);
 	to->dev = from->dev;
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 68a21bf75dd0..35d8346742e2 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -646,10 +646,8 @@ static int __init vti_init(void)
 
 	msg = "ipip tunnel";
 	err = xfrm4_tunnel_register(&ipip_handler, AF_INET);
-	if (err < 0) {
-		pr_info("%s: cant't register tunnel\n",__func__);
+	if (err < 0)
 		goto xfrm_tunnel_failed;
-	}
 
 	msg = "netlink interface";
 	err = rtnl_link_register(&vti_link_ops);
@@ -659,9 +657,9 @@ static int __init vti_init(void)
 	return err;
 
 rtnl_link_failed:
-	xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP);
-xfrm_tunnel_failed:
 	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
+xfrm_tunnel_failed:
+	xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP);
 xfrm_proto_comp_failed:
 	xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH);
 xfrm_proto_ah_failed:
@@ -676,6 +674,7 @@ pernet_dev_failed:
 static void __exit vti_fini(void)
 {
 	rtnl_link_unregister(&vti_link_ops);
+	xfrm4_tunnel_deregister(&ipip_handler, AF_INET);
 	xfrm4_protocol_deregister(&vti_ipcomp4_protocol, IPPROTO_COMP);
 	xfrm4_protocol_deregister(&vti_ah4_protocol, IPPROTO_AH);
 	xfrm4_protocol_deregister(&vti_esp4_protocol, IPPROTO_ESP);
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index a5da63e5faa2..6fdf1c195d8e 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1183,11 +1183,39 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie)
 	return dst;
 }
 
+static void ipv4_send_dest_unreach(struct sk_buff *skb)
+{
+	struct ip_options opt;
+	int res;
+
+	/* Recompile ip options since IPCB may not be valid anymore.
+	 * Also check we have a reasonable ipv4 header.
+	 */
+	if (!pskb_network_may_pull(skb, sizeof(struct iphdr)) ||
+	    ip_hdr(skb)->version != 4 || ip_hdr(skb)->ihl < 5)
+		return;
+
+	memset(&opt, 0, sizeof(opt));
+	if (ip_hdr(skb)->ihl > 5) {
+		if (!pskb_network_may_pull(skb, ip_hdr(skb)->ihl * 4))
+			return;
+		opt.optlen = ip_hdr(skb)->ihl * 4 - sizeof(struct iphdr);
+
+		rcu_read_lock();
+		res = __ip_options_compile(dev_net(skb->dev), &opt, skb, NULL);
+		rcu_read_unlock();
+
+		if (res)
+			return;
+	}
+	__icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0, &opt);
+}
+
 static void ipv4_link_failure(struct sk_buff *skb)
 {
 	struct rtable *rt;
 
-	icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0);
+	ipv4_send_dest_unreach(skb);
 
 	rt = skb_rtable(skb);
 	if (rt)
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index ba0fc4b18465..eeb4041fa5f9 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -49,6 +49,7 @@ static int ip_ping_group_range_min[] = { 0, 0 };
 static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
 static int comp_sack_nr_max = 255;
 static u32 u32_max_div_HZ = UINT_MAX / HZ;
+static int one_day_secs = 24 * 3600;
 
 /* obsolete */
 static int sysctl_tcp_low_latency __read_mostly;
@@ -1151,7 +1152,9 @@ static struct ctl_table ipv4_net_table[] = {
 		.data		= &init_net.ipv4.sysctl_tcp_min_rtt_wlen,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &one_day_secs
 	},
 	{
 		.procname	= "tcp_autocorking",
diff --git a/net/ipv4/tcp_dctcp.c b/net/ipv4/tcp_dctcp.c
index cd4814f7e962..477cb4aa456c 100644
--- a/net/ipv4/tcp_dctcp.c
+++ b/net/ipv4/tcp_dctcp.c
@@ -49,9 +49,8 @@
 #define DCTCP_MAX_ALPHA	1024U
 
 struct dctcp {
-	u32 acked_bytes_ecn;
-	u32 acked_bytes_total;
-	u32 prior_snd_una;
+	u32 old_delivered;
+	u32 old_delivered_ce;
 	u32 prior_rcv_nxt;
 	u32 dctcp_alpha;
 	u32 next_seq;
@@ -67,19 +66,14 @@ static unsigned int dctcp_alpha_on_init __read_mostly = DCTCP_MAX_ALPHA;
 module_param(dctcp_alpha_on_init, uint, 0644);
 MODULE_PARM_DESC(dctcp_alpha_on_init, "parameter for initial alpha value");
 
-static unsigned int dctcp_clamp_alpha_on_loss __read_mostly;
-module_param(dctcp_clamp_alpha_on_loss, uint, 0644);
-MODULE_PARM_DESC(dctcp_clamp_alpha_on_loss,
-		 "parameter for clamping alpha on loss");
-
 static struct tcp_congestion_ops dctcp_reno;
 
 static void dctcp_reset(const struct tcp_sock *tp, struct dctcp *ca)
 {
 	ca->next_seq = tp->snd_nxt;
 
-	ca->acked_bytes_ecn = 0;
-	ca->acked_bytes_total = 0;
+	ca->old_delivered = tp->delivered;
+	ca->old_delivered_ce = tp->delivered_ce;
 }
 
 static void dctcp_init(struct sock *sk)
@@ -91,7 +85,6 @@ static void dctcp_init(struct sock *sk)
 	     sk->sk_state == TCP_CLOSE)) {
 		struct dctcp *ca = inet_csk_ca(sk);
 
-		ca->prior_snd_una = tp->snd_una;
 		ca->prior_rcv_nxt = tp->rcv_nxt;
 
 		ca->dctcp_alpha = min(dctcp_alpha_on_init, DCTCP_MAX_ALPHA);
@@ -123,37 +116,25 @@ static void dctcp_update_alpha(struct sock *sk, u32 flags)
 {
 	const struct tcp_sock *tp = tcp_sk(sk);
 	struct dctcp *ca = inet_csk_ca(sk);
-	u32 acked_bytes = tp->snd_una - ca->prior_snd_una;
-
-	/* If ack did not advance snd_una, count dupack as MSS size.
-	 * If ack did update window, do not count it at all.
-	 */
-	if (acked_bytes == 0 && !(flags & CA_ACK_WIN_UPDATE))
-		acked_bytes = inet_csk(sk)->icsk_ack.rcv_mss;
-	if (acked_bytes) {
-		ca->acked_bytes_total += acked_bytes;
-		ca->prior_snd_una = tp->snd_una;
-
-		if (flags & CA_ACK_ECE)
-			ca->acked_bytes_ecn += acked_bytes;
-	}
 
 	/* Expired RTT */
 	if (!before(tp->snd_una, ca->next_seq)) {
-		u64 bytes_ecn = ca->acked_bytes_ecn;
+		u32 delivered_ce = tp->delivered_ce - ca->old_delivered_ce;
 		u32 alpha = ca->dctcp_alpha;
 
 		/* alpha = (1 - g) * alpha + g * F */
 
 		alpha -= min_not_zero(alpha, alpha >> dctcp_shift_g);
-		if (bytes_ecn) {
+		if (delivered_ce) {
+			u32 delivered = tp->delivered - ca->old_delivered;
+
 			/* If dctcp_shift_g == 1, a 32bit value would overflow
-			 * after 8 Mbytes.
+			 * after 8 M packets.
 			 */
-			bytes_ecn <<= (10 - dctcp_shift_g);
-			do_div(bytes_ecn, max(1U, ca->acked_bytes_total));
+			delivered_ce <<= (10 - dctcp_shift_g);
+			delivered_ce /= max(1U, delivered);
 
-			alpha = min(alpha + (u32)bytes_ecn, DCTCP_MAX_ALPHA);
+			alpha = min(alpha + delivered_ce, DCTCP_MAX_ALPHA);
 		}
 		/* dctcp_alpha can be read from dctcp_get_info() without
 		 * synchro, so we ask compiler to not use dctcp_alpha
@@ -164,21 +145,23 @@ static void dctcp_update_alpha(struct sock *sk, u32 flags)
 	}
 }
 
-static void dctcp_state(struct sock *sk, u8 new_state)
+static void dctcp_react_to_loss(struct sock *sk)
 {
-	if (dctcp_clamp_alpha_on_loss && new_state == TCP_CA_Loss) {
-		struct dctcp *ca = inet_csk_ca(sk);
+	struct dctcp *ca = inet_csk_ca(sk);
+	struct tcp_sock *tp = tcp_sk(sk);
 
-		/* If this extension is enabled, we clamp dctcp_alpha to
-		 * max on packet loss; the motivation is that dctcp_alpha
-		 * is an indicator to the extend of congestion and packet
-		 * loss is an indicator of extreme congestion; setting
-		 * this in practice turned out to be beneficial, and
-		 * effectively assumes total congestion which reduces the
-		 * window by half.
-		 */
-		ca->dctcp_alpha = DCTCP_MAX_ALPHA;
-	}
+	ca->loss_cwnd = tp->snd_cwnd;
+	tp->snd_ssthresh = max(tp->snd_cwnd >> 1U, 2U);
+}
+
+static void dctcp_state(struct sock *sk, u8 new_state)
+{
+	if (new_state == TCP_CA_Recovery &&
+	    new_state != inet_csk(sk)->icsk_ca_state)
+		dctcp_react_to_loss(sk);
+	/* We handle RTO in dctcp_cwnd_event to ensure that we perform only
+	 * one loss-adjustment per RTT.
+	 */
 }
 
 static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev)
@@ -190,6 +173,9 @@ static void dctcp_cwnd_event(struct sock *sk, enum tcp_ca_event ev)
 	case CA_EVENT_ECN_NO_CE:
 		dctcp_ece_ack_update(sk, ev, &ca->prior_rcv_nxt, &ca->ce_state);
 		break;
+	case CA_EVENT_LOSS:
+		dctcp_react_to_loss(sk);
+		break;
 	default:
 		/* Don't care for the rest. */
 		break;
@@ -200,6 +186,7 @@ static size_t dctcp_get_info(struct sock *sk, u32 ext, int *attr,
 			     union tcp_cc_info *info)
 {
 	const struct dctcp *ca = inet_csk_ca(sk);
+	const struct tcp_sock *tp = tcp_sk(sk);
 
 	/* Fill it also in case of VEGASINFO due to req struct limits.
 	 * We can still correctly retrieve it later.
@@ -211,8 +198,10 @@ static size_t dctcp_get_info(struct sock *sk, u32 ext, int *attr,
 			info->dctcp.dctcp_enabled = 1;
 			info->dctcp.dctcp_ce_state = (u16) ca->ce_state;
 			info->dctcp.dctcp_alpha = ca->dctcp_alpha;
-			info->dctcp.dctcp_ab_ecn = ca->acked_bytes_ecn;
-			info->dctcp.dctcp_ab_tot = ca->acked_bytes_total;
+			info->dctcp.dctcp_ab_ecn = tp->mss_cache *
+						   (tp->delivered_ce - ca->old_delivered_ce);
+			info->dctcp.dctcp_ab_tot = tp->mss_cache *
+						   (tp->delivered - ca->old_delivered);
 		}
 
 		*attr = INET_DIAG_DCTCPINFO;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5def3c48870e..731d3045b50a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -402,11 +402,12 @@ static int __tcp_grow_window(const struct sock *sk, const struct sk_buff *skb)
 static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
+	int room;
+
+	room = min_t(int, tp->window_clamp, tcp_space(sk)) - tp->rcv_ssthresh;
 
 	/* Check #1 */
-	if (tp->rcv_ssthresh < tp->window_clamp &&
-	    (int)tp->rcv_ssthresh < tcp_space(sk) &&
-	    !tcp_under_memory_pressure(sk)) {
+	if (room > 0 && !tcp_under_memory_pressure(sk)) {
 		int incr;
 
 		/* Check #2. Increase window, if skb with such overhead
@@ -419,8 +420,7 @@ static void tcp_grow_window(struct sock *sk, const struct sk_buff *skb)
 
 		if (incr) {
 			incr = max_t(int, incr, 2 * skb->len);
-			tp->rcv_ssthresh = min(tp->rcv_ssthresh + incr,
-					       tp->window_clamp);
+			tp->rcv_ssthresh += min(room, incr);
 			inet_csk(sk)->icsk_ack.quick |= 1;
 		}
 	}
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 277d71239d75..a2896944aa37 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1673,7 +1673,9 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
 	if (TCP_SKB_CB(tail)->end_seq != TCP_SKB_CB(skb)->seq ||
 	    TCP_SKB_CB(tail)->ip_dsfield != TCP_SKB_CB(skb)->ip_dsfield ||
 	    ((TCP_SKB_CB(tail)->tcp_flags |
-	      TCP_SKB_CB(skb)->tcp_flags) & TCPHDR_URG) ||
+	      TCP_SKB_CB(skb)->tcp_flags) & (TCPHDR_SYN | TCPHDR_RST | TCPHDR_URG)) ||
+	    !((TCP_SKB_CB(tail)->tcp_flags &
+	      TCP_SKB_CB(skb)->tcp_flags) & TCPHDR_ACK) ||
 	    ((TCP_SKB_CB(tail)->tcp_flags ^
 	      TCP_SKB_CB(skb)->tcp_flags) & (TCPHDR_ECE | TCPHDR_CWR)) ||
 #ifdef CONFIG_TLS_DEVICE
@@ -1692,6 +1694,15 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
 		if (after(TCP_SKB_CB(skb)->ack_seq, TCP_SKB_CB(tail)->ack_seq))
 			TCP_SKB_CB(tail)->ack_seq = TCP_SKB_CB(skb)->ack_seq;
 
+		/* We have to update both TCP_SKB_CB(tail)->tcp_flags and
+		 * thtail->fin, so that the fast path in tcp_rcv_established()
+		 * is not entered if we append a packet with a FIN.
+		 * SYN, RST, URG are not present.
+		 * ACK is set on both packets.
+		 * PSH : we do not really care in TCP stack,
+		 *       at least for 'GRO' packets.
+		 */
+		thtail->fin |= th->fin;
 		TCP_SKB_CB(tail)->tcp_flags |= TCP_SKB_CB(skb)->tcp_flags;
 
 		if (TCP_SKB_CB(skb)->has_rxtstamp) {
@@ -2578,7 +2589,8 @@ static void __net_exit tcp_sk_exit(struct net *net)
 {
 	int cpu;
 
-	module_put(net->ipv4.tcp_congestion_control->owner);
+	if (net->ipv4.tcp_congestion_control)
+		module_put(net->ipv4.tcp_congestion_control->owner);
 
 	for_each_possible_cpu(cpu)
 		inet_ctl_sock_destroy(*per_cpu_ptr(net->ipv4.tcp_sk, cpu));
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 64f9715173ac..065334b41d57 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -352,6 +352,7 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
 	struct sk_buff *pp = NULL;
 	struct udphdr *uh2;
 	struct sk_buff *p;
+	unsigned int ulen;
 
 	/* requires non zero csum, for symmetry with GSO */
 	if (!uh->check) {
@@ -359,6 +360,12 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
 		return NULL;
 	}
 
+	/* Do not deal with padded or malicious packets, sorry ! */
+	ulen = ntohs(uh->len);
+	if (ulen <= sizeof(*uh) || ulen != skb_gro_len(skb)) {
+		NAPI_GRO_CB(skb)->flush = 1;
+		return NULL;
+	}
 	/* pull encapsulating udp header */
 	skb_gro_pull(skb, sizeof(struct udphdr));
 	skb_gro_postpull_rcsum(skb, uh, sizeof(struct udphdr));
@@ -377,13 +384,14 @@ static struct sk_buff *udp_gro_receive_segment(struct list_head *head,
 
 		/* Terminate the flow on len mismatch or if it grow "too much".
 		 * Under small packet flood GRO count could elsewhere grow a lot
-		 * leading to execessive truesize values
+		 * leading to excessive truesize values.
+		 * On len mismatch merge the first packet shorter than gso_size,
+		 * otherwise complete the GRO packet.
 		 */
-		if (!skb_gro_receive(p, skb) &&
+		if (ulen > ntohs(uh2->len) || skb_gro_receive(p, skb) ||
+		    ulen != ntohs(uh2->len) ||
 		    NAPI_GRO_CB(p)->count >= UDP_GRO_CNT_MAX)
 			pp = p;
-		else if (uh->len != uh2->len)
-			pp = p;
 
 		return pp;
 	}
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index d73a6d6652f6..2b144b92ae46 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -111,7 +111,8 @@ static void
 _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 {
 	const struct iphdr *iph = ip_hdr(skb);
-	u8 *xprth = skb_network_header(skb) + iph->ihl * 4;
+	int ihl = iph->ihl;
+	u8 *xprth = skb_network_header(skb) + ihl * 4;
 	struct flowi4 *fl4 = &fl->u.ip4;
 	int oif = 0;
 
@@ -122,6 +123,11 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 	fl4->flowi4_mark = skb->mark;
 	fl4->flowi4_oif = reverse ? skb->skb_iif : oif;
 
+	fl4->flowi4_proto = iph->protocol;
+	fl4->daddr = reverse ? iph->saddr : iph->daddr;
+	fl4->saddr = reverse ? iph->daddr : iph->saddr;
+	fl4->flowi4_tos = iph->tos;
+
 	if (!ip_is_fragment(iph)) {
 		switch (iph->protocol) {
 		case IPPROTO_UDP:
@@ -133,7 +139,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			    pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				__be16 *ports;
 
-				xprth = skb_network_header(skb) + iph->ihl * 4;
+				xprth = skb_network_header(skb) + ihl * 4;
 				ports = (__be16 *)xprth;
 
 				fl4->fl4_sport = ports[!!reverse];
@@ -146,7 +152,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			    pskb_may_pull(skb, xprth + 2 - skb->data)) {
 				u8 *icmp;
 
-				xprth = skb_network_header(skb) + iph->ihl * 4;
+				xprth = skb_network_header(skb) + ihl * 4;
 				icmp = xprth;
 
 				fl4->fl4_icmp_type = icmp[0];
@@ -159,7 +165,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			    pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				__be32 *ehdr;
 
-				xprth = skb_network_header(skb) + iph->ihl * 4;
+				xprth = skb_network_header(skb) + ihl * 4;
 				ehdr = (__be32 *)xprth;
 
 				fl4->fl4_ipsec_spi = ehdr[0];
@@ -171,7 +177,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			    pskb_may_pull(skb, xprth + 8 - skb->data)) {
 				__be32 *ah_hdr;
 
-				xprth = skb_network_header(skb) + iph->ihl * 4;
+				xprth = skb_network_header(skb) + ihl * 4;
 				ah_hdr = (__be32 *)xprth;
 
 				fl4->fl4_ipsec_spi = ah_hdr[1];
@@ -183,7 +189,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			    pskb_may_pull(skb, xprth + 4 - skb->data)) {
 				__be16 *ipcomp_hdr;
 
-				xprth = skb_network_header(skb) + iph->ihl * 4;
+				xprth = skb_network_header(skb) + ihl * 4;
 				ipcomp_hdr = (__be16 *)xprth;
 
 				fl4->fl4_ipsec_spi = htonl(ntohs(ipcomp_hdr[1]));
@@ -196,7 +202,7 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 				__be16 *greflags;
 				__be32 *gre_hdr;
 
-				xprth = skb_network_header(skb) + iph->ihl * 4;
+				xprth = skb_network_header(skb) + ihl * 4;
 				greflags = (__be16 *)xprth;
 				gre_hdr = (__be32 *)xprth;
 
@@ -213,10 +219,6 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 			break;
 		}
 	}
-	fl4->flowi4_proto = iph->protocol;
-	fl4->daddr = reverse ? iph->saddr : iph->daddr;
-	fl4->saddr = reverse ? iph->daddr : iph->saddr;
-	fl4->flowi4_tos = iph->tos;
 }
 
 static void xfrm4_update_pmtu(struct dst_entry *dst, struct sock *sk,
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index d43d076c98f5..1766325423b5 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -476,7 +476,7 @@ static int ip6addrlbl_valid_dump_req(const struct nlmsghdr *nlh,
 	}
 
 	if (nlmsg_attrlen(nlh, sizeof(*ifal))) {
-		NL_SET_ERR_MSG_MOD(extack, "Invalid data after header for address label dump requewst");
+		NL_SET_ERR_MSG_MOD(extack, "Invalid data after header for address label dump request");
 		return -EINVAL;
 	}
 
diff --git a/net/ipv6/esp6_offload.c b/net/ipv6/esp6_offload.c
index d46b4eb645c2..cb99f6fb79b7 100644
--- a/net/ipv6/esp6_offload.c
+++ b/net/ipv6/esp6_offload.c
@@ -74,13 +74,13 @@ static struct sk_buff *esp6_gro_receive(struct list_head *head,
 			goto out;
 
 		if (sp->len == XFRM_MAX_DEPTH)
-			goto out;
+			goto out_reset;
 
 		x = xfrm_state_lookup(dev_net(skb->dev), skb->mark,
 				      (xfrm_address_t *)&ipv6_hdr(skb)->daddr,
 				      spi, IPPROTO_ESP, AF_INET6);
 		if (!x)
-			goto out;
+			goto out_reset;
 
 		sp->xvec[sp->len++] = x;
 		sp->olen++;
@@ -88,7 +88,7 @@ static struct sk_buff *esp6_gro_receive(struct list_head *head,
 		xo = xfrm_offload(skb);
 		if (!xo) {
 			xfrm_state_put(x);
-			goto out;
+			goto out_reset;
 		}
 	}
 
@@ -109,6 +109,8 @@ static struct sk_buff *esp6_gro_receive(struct list_head *head,
 	xfrm_input(skb, IPPROTO_ESP, spi, -2);
 
 	return ERR_PTR(-EINPROGRESS);
+out_reset:
+	secpath_reset(skb);
 out:
 	skb_push(skb, offset);
 	NAPI_GRO_CB(skb)->same_flow = 0;
diff --git a/net/ipv6/ila/ila_xlat.c b/net/ipv6/ila/ila_xlat.c
index 79d2e43c05c5..5fc1f4e0c0cf 100644
--- a/net/ipv6/ila/ila_xlat.c
+++ b/net/ipv6/ila/ila_xlat.c
@@ -417,6 +417,7 @@ int ila_xlat_nl_cmd_flush(struct sk_buff *skb, struct genl_info *info)
 
 done:
 	rhashtable_walk_stop(&iter);
+	rhashtable_walk_exit(&iter);
 	return ret;
 }
 
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 6613d8dbb0e5..91247a6fc67f 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -921,9 +921,7 @@ static void fib6_drop_pcpu_from(struct fib6_info *f6i,
 		if (pcpu_rt) {
 			struct fib6_info *from;
 
-			from = rcu_dereference_protected(pcpu_rt->from,
-					     lockdep_is_held(&table->tb6_lock));
-			rcu_assign_pointer(pcpu_rt->from, NULL);
+			from = xchg((__force struct fib6_info **)&pcpu_rt->from, NULL);
 			fib6_info_release(from);
 		}
 	}
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index cb54a8a3c273..be5f3d7ceb96 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -94,15 +94,21 @@ static struct ip6_flowlabel *fl_lookup(struct net *net, __be32 label)
 	return fl;
 }
 
+static void fl_free_rcu(struct rcu_head *head)
+{
+	struct ip6_flowlabel *fl = container_of(head, struct ip6_flowlabel, rcu);
+
+	if (fl->share == IPV6_FL_S_PROCESS)
+		put_pid(fl->owner.pid);
+	kfree(fl->opt);
+	kfree(fl);
+}
+
 
 static void fl_free(struct ip6_flowlabel *fl)
 {
-	if (fl) {
-		if (fl->share == IPV6_FL_S_PROCESS)
-			put_pid(fl->owner.pid);
-		kfree(fl->opt);
-		kfree_rcu(fl, rcu);
-	}
+	if (fl)
+		call_rcu(&fl->rcu, fl_free_rcu);
 }
 
 static void fl_release(struct ip6_flowlabel *fl)
@@ -633,9 +639,9 @@ recheck:
 				if (fl1->share == IPV6_FL_S_EXCL ||
 				    fl1->share != fl->share ||
 				    ((fl1->share == IPV6_FL_S_PROCESS) &&
-				     (fl1->owner.pid == fl->owner.pid)) ||
+				     (fl1->owner.pid != fl->owner.pid)) ||
 				    ((fl1->share == IPV6_FL_S_USER) &&
-				     uid_eq(fl1->owner.uid, fl->owner.uid)))
+				     !uid_eq(fl1->owner.uid, fl->owner.uid)))
 					goto release;
 
 				err = -ENOMEM;
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index b32c95f02128..655e46b227f9 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -525,10 +525,10 @@ static int ip6gre_rcv(struct sk_buff *skb, const struct tnl_ptk_info *tpi)
 }
 
 static int ip6erspan_rcv(struct sk_buff *skb,
-			 struct tnl_ptk_info *tpi)
+			 struct tnl_ptk_info *tpi,
+			 int gre_hdr_len)
 {
 	struct erspan_base_hdr *ershdr;
-	struct erspan_metadata *pkt_md;
 	const struct ipv6hdr *ipv6h;
 	struct erspan_md2 *md2;
 	struct ip6_tnl *tunnel;
@@ -547,18 +547,16 @@ static int ip6erspan_rcv(struct sk_buff *skb,
 		if (unlikely(!pskb_may_pull(skb, len)))
 			return PACKET_REJECT;
 
-		ershdr = (struct erspan_base_hdr *)skb->data;
-		pkt_md = (struct erspan_metadata *)(ershdr + 1);
-
 		if (__iptunnel_pull_header(skb, len,
 					   htons(ETH_P_TEB),
 					   false, false) < 0)
 			return PACKET_REJECT;
 
 		if (tunnel->parms.collect_md) {
+			struct erspan_metadata *pkt_md, *md;
 			struct metadata_dst *tun_dst;
 			struct ip_tunnel_info *info;
-			struct erspan_metadata *md;
+			unsigned char *gh;
 			__be64 tun_id;
 			__be16 flags;
 
@@ -571,6 +569,14 @@ static int ip6erspan_rcv(struct sk_buff *skb,
 			if (!tun_dst)
 				return PACKET_REJECT;
 
+			/* skb can be uncloned in __iptunnel_pull_header, so
+			 * old pkt_md is no longer valid and we need to reset
+			 * it
+			 */
+			gh = skb_network_header(skb) +
+			     skb_network_header_len(skb);
+			pkt_md = (struct erspan_metadata *)(gh + gre_hdr_len +
+							    sizeof(*ershdr));
 			info = &tun_dst->u.tun_info;
 			md = ip_tunnel_info_opts(info);
 			md->version = ver;
@@ -607,7 +613,7 @@ static int gre_rcv(struct sk_buff *skb)
 
 	if (unlikely(tpi.proto == htons(ETH_P_ERSPAN) ||
 		     tpi.proto == htons(ETH_P_ERSPAN2))) {
-		if (ip6erspan_rcv(skb, &tpi) == PACKET_RCVD)
+		if (ip6erspan_rcv(skb, &tpi, hdr_len) == PACKET_RCVD)
 			return 0;
 		goto out;
 	}
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index edbd12067170..e51f3c648b09 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -601,7 +601,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 				inet6_sk(skb->sk) : NULL;
 	struct ipv6hdr *tmp_hdr;
 	struct frag_hdr *fh;
-	unsigned int mtu, hlen, left, len;
+	unsigned int mtu, hlen, left, len, nexthdr_offset;
 	int hroom, troom;
 	__be32 frag_id;
 	int ptr, offset = 0, err = 0;
@@ -612,6 +612,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 		goto fail;
 	hlen = err;
 	nexthdr = *prevhdr;
+	nexthdr_offset = prevhdr - skb_network_header(skb);
 
 	mtu = ip6_skb_dst_mtu(skb);
 
@@ -646,6 +647,7 @@ int ip6_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
 	    (err = skb_checksum_help(skb)))
 		goto fail;
 
+	prevhdr = skb_network_header(skb) + nexthdr_offset;
 	hroom = LL_RESERVED_SPACE(rt->dst.dev);
 	if (skb_has_frag_list(skb)) {
 		unsigned int first_len = skb_pagelen(skb);
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 0c6403cf8b52..ade1390c6348 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -627,7 +627,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		rt = ip_route_output_ports(dev_net(skb->dev), &fl4, NULL,
 					   eiph->daddr, eiph->saddr, 0, 0,
 					   IPPROTO_IPIP, RT_TOS(eiph->tos), 0);
-		if (IS_ERR(rt) || rt->dst.dev->type != ARPHRD_TUNNEL) {
+		if (IS_ERR(rt) || rt->dst.dev->type != ARPHRD_TUNNEL6) {
 			if (!IS_ERR(rt))
 				ip_rt_put(rt);
 			goto out;
@@ -636,7 +636,7 @@ ip4ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	} else {
 		if (ip_route_input(skb2, eiph->daddr, eiph->saddr, eiph->tos,
 				   skb2->dev) ||
-		    skb_dst(skb2)->dev->type != ARPHRD_TUNNEL)
+		    skb_dst(skb2)->dev->type != ARPHRD_TUNNEL6)
 			goto out;
 	}
 
diff --git a/net/ipv6/netfilter/ip6t_srh.c b/net/ipv6/netfilter/ip6t_srh.c
index 1059894a6f4c..4cb83fb69844 100644
--- a/net/ipv6/netfilter/ip6t_srh.c
+++ b/net/ipv6/netfilter/ip6t_srh.c
@@ -210,6 +210,8 @@ static bool srh1_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 		psidoff = srhoff + sizeof(struct ipv6_sr_hdr) +
 			  ((srh->segments_left + 1) * sizeof(struct in6_addr));
 		psid = skb_header_pointer(skb, psidoff, sizeof(_psid), &_psid);
+		if (!psid)
+			return false;
 		if (NF_SRH_INVF(srhinfo, IP6T_SRH_INV_PSID,
 				ipv6_masked_addr_cmp(psid, &srhinfo->psid_msk,
 						     &srhinfo->psid_addr)))
@@ -223,6 +225,8 @@ static bool srh1_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 		nsidoff = srhoff + sizeof(struct ipv6_sr_hdr) +
 			  ((srh->segments_left - 1) * sizeof(struct in6_addr));
 		nsid = skb_header_pointer(skb, nsidoff, sizeof(_nsid), &_nsid);
+		if (!nsid)
+			return false;
 		if (NF_SRH_INVF(srhinfo, IP6T_SRH_INV_NSID,
 				ipv6_masked_addr_cmp(nsid, &srhinfo->nsid_msk,
 						     &srhinfo->nsid_addr)))
@@ -233,6 +237,8 @@ static bool srh1_mt6(const struct sk_buff *skb, struct xt_action_param *par)
 	if (srhinfo->mt_flags & IP6T_SRH_LSID) {
 		lsidoff = srhoff + sizeof(struct ipv6_sr_hdr);
 		lsid = skb_header_pointer(skb, lsidoff, sizeof(_lsid), &_lsid);
+		if (!lsid)
+			return false;
 		if (NF_SRH_INVF(srhinfo, IP6T_SRH_INV_LSID,
 				ipv6_masked_addr_cmp(lsid, &srhinfo->lsid_msk,
 						     &srhinfo->lsid_addr)))
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 4ef4bbdb49d4..0520aca3354b 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -379,11 +379,8 @@ static void ip6_dst_destroy(struct dst_entry *dst)
 		in6_dev_put(idev);
 	}
 
-	rcu_read_lock();
-	from = rcu_dereference(rt->from);
-	rcu_assign_pointer(rt->from, NULL);
+	from = xchg((__force struct fib6_info **)&rt->from, NULL);
 	fib6_info_release(from);
-	rcu_read_unlock();
 }
 
 static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev,
@@ -1040,14 +1037,20 @@ static struct rt6_info *ip6_create_rt_rcu(struct fib6_info *rt)
 	struct rt6_info *nrt;
 
 	if (!fib6_info_hold_safe(rt))
-		return NULL;
+		goto fallback;
 
 	nrt = ip6_dst_alloc(dev_net(dev), dev, flags);
-	if (nrt)
-		ip6_rt_copy_init(nrt, rt);
-	else
+	if (!nrt) {
 		fib6_info_release(rt);
+		goto fallback;
+	}
+
+	ip6_rt_copy_init(nrt, rt);
+	return nrt;
 
+fallback:
+	nrt = dev_net(dev)->ipv6.ip6_null_entry;
+	dst_hold(&nrt->dst);
 	return nrt;
 }
 
@@ -1096,10 +1099,6 @@ restart:
 		dst_hold(&rt->dst);
 	} else {
 		rt = ip6_create_rt_rcu(f6i);
-		if (!rt) {
-			rt = net->ipv6.ip6_null_entry;
-			dst_hold(&rt->dst);
-		}
 	}
 
 	rcu_read_unlock();
@@ -1286,9 +1285,7 @@ static void rt6_remove_exception(struct rt6_exception_bucket *bucket,
 	/* purge completely the exception to allow releasing the held resources:
 	 * some [sk] cache may keep the dst around for unlimited time
 	 */
-	from = rcu_dereference_protected(rt6_ex->rt6i->from,
-					 lockdep_is_held(&rt6_exception_lock));
-	rcu_assign_pointer(rt6_ex->rt6i->from, NULL);
+	from = xchg((__force struct fib6_info **)&rt6_ex->rt6i->from, NULL);
 	fib6_info_release(from);
 	dst_dev_put(&rt6_ex->rt6i->dst);
 
@@ -2328,6 +2325,10 @@ static void __ip6_rt_update_pmtu(struct dst_entry *dst, const struct sock *sk,
 
 		rcu_read_lock();
 		from = rcu_dereference(rt6->from);
+		if (!from) {
+			rcu_read_unlock();
+			return;
+		}
 		nrt6 = ip6_rt_cache_alloc(from, daddr, saddr);
 		if (nrt6) {
 			rt6_do_update_pmtu(nrt6, mtu);
@@ -3391,11 +3392,8 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
 
 	rcu_read_lock();
 	from = rcu_dereference(rt->from);
-	/* This fib6_info_hold() is safe here because we hold reference to rt
-	 * and rt already holds reference to fib6_info.
-	 */
-	fib6_info_hold(from);
-	rcu_read_unlock();
+	if (!from)
+		goto out;
 
 	nrt = ip6_rt_cache_alloc(from, &msg->dest, NULL);
 	if (!nrt)
@@ -3407,10 +3405,7 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
 
 	nrt->rt6i_gateway = *(struct in6_addr *)neigh->primary_key;
 
-	/* No need to remove rt from the exception table if rt is
-	 * a cached route because rt6_insert_exception() will
-	 * takes care of it
-	 */
+	/* rt6_insert_exception() will take care of duplicated exceptions */
 	if (rt6_insert_exception(nrt, from)) {
 		dst_release_immediate(&nrt->dst);
 		goto out;
@@ -3423,7 +3418,7 @@ static void rt6_do_redirect(struct dst_entry *dst, struct sock *sk, struct sk_bu
 	call_netevent_notifiers(NETEVENT_REDIRECT, &netevent);
 
 out:
-	fib6_info_release(from);
+	rcu_read_unlock();
 	neigh_release(neigh);
 }
 
@@ -3662,23 +3657,34 @@ int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg)
 
 static int ip6_pkt_drop(struct sk_buff *skb, u8 code, int ipstats_mib_noroutes)
 {
-	int type;
 	struct dst_entry *dst = skb_dst(skb);
+	struct net *net = dev_net(dst->dev);
+	struct inet6_dev *idev;
+	int type;
+
+	if (netif_is_l3_master(skb->dev) &&
+	    dst->dev == net->loopback_dev)
+		idev = __in6_dev_get_safely(dev_get_by_index_rcu(net, IP6CB(skb)->iif));
+	else
+		idev = ip6_dst_idev(dst);
+
 	switch (ipstats_mib_noroutes) {
 	case IPSTATS_MIB_INNOROUTES:
 		type = ipv6_addr_type(&ipv6_hdr(skb)->daddr);
 		if (type == IPV6_ADDR_ANY) {
-			IP6_INC_STATS(dev_net(dst->dev),
-				      __in6_dev_get_safely(skb->dev),
-				      IPSTATS_MIB_INADDRERRORS);
+			IP6_INC_STATS(net, idev, IPSTATS_MIB_INADDRERRORS);
 			break;
 		}
 		/* FALLTHROUGH */
 	case IPSTATS_MIB_OUTNOROUTES:
-		IP6_INC_STATS(dev_net(dst->dev), ip6_dst_idev(dst),
-			      ipstats_mib_noroutes);
+		IP6_INC_STATS(net, idev, ipstats_mib_noroutes);
 		break;
 	}
+
+	/* Start over by dropping the dst for l3mdev case */
+	if (netif_is_l3_master(skb->dev))
+		skb_dst_drop(skb);
+
 	icmpv6_send(skb, ICMPV6_DEST_UNREACH, code, 0);
 	kfree_skb(skb);
 	return 0;
@@ -5011,16 +5017,20 @@ static int inet6_rtm_getroute(struct sk_buff *in_skb, struct nlmsghdr *nlh,
 
 	rcu_read_lock();
 	from = rcu_dereference(rt->from);
-
-	if (fibmatch)
-		err = rt6_fill_node(net, skb, from, NULL, NULL, NULL, iif,
-				    RTM_NEWROUTE, NETLINK_CB(in_skb).portid,
-				    nlh->nlmsg_seq, 0);
-	else
-		err = rt6_fill_node(net, skb, from, dst, &fl6.daddr,
-				    &fl6.saddr, iif, RTM_NEWROUTE,
-				    NETLINK_CB(in_skb).portid, nlh->nlmsg_seq,
-				    0);
+	if (from) {
+		if (fibmatch)
+			err = rt6_fill_node(net, skb, from, NULL, NULL, NULL,
+					    iif, RTM_NEWROUTE,
+					    NETLINK_CB(in_skb).portid,
+					    nlh->nlmsg_seq, 0);
+		else
+			err = rt6_fill_node(net, skb, from, dst, &fl6.daddr,
+					    &fl6.saddr, iif, RTM_NEWROUTE,
+					    NETLINK_CB(in_skb).portid,
+					    nlh->nlmsg_seq, 0);
+	} else {
+		err = -ENETUNREACH;
+	}
 	rcu_read_unlock();
 
 	if (err < 0) {
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 07e21a82ce4c..b2109b74857d 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -669,6 +669,10 @@ static int ipip6_rcv(struct sk_buff *skb)
 		    !net_eq(tunnel->net, dev_net(tunnel->dev))))
 			goto out;
 
+		/* skb can be uncloned in iptunnel_pull_header, so
+		 * old iph is no longer valid
+		 */
+		iph = (const struct iphdr *)skb_mac_header(skb);
 		err = IP_ECN_decapsulate(iph, skb);
 		if (unlikely(err)) {
 			if (log_ecn_error)
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 57ef69a10889..44d431849d39 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1110,11 +1110,11 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
 		newnp->ipv6_fl_list = NULL;
 		newnp->pktoptions  = NULL;
 		newnp->opt	   = NULL;
-		newnp->mcast_oif   = tcp_v6_iif(skb);
-		newnp->mcast_hops  = ipv6_hdr(skb)->hop_limit;
-		newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb));
+		newnp->mcast_oif   = inet_iif(skb);
+		newnp->mcast_hops  = ip_hdr(skb)->ttl;
+		newnp->rcv_flowinfo = 0;
 		if (np->repflow)
-			newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb));
+			newnp->flow_label = 0;
 
 		/*
 		 * No need to charge this sock to the relevant IPv6 refcnt debug socks count
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index b444483cdb2b..622eeaf5732b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -1047,6 +1047,8 @@ static void udp_v6_flush_pending_frames(struct sock *sk)
 static int udpv6_pre_connect(struct sock *sk, struct sockaddr *uaddr,
 			     int addr_len)
 {
+	if (addr_len < offsetofend(struct sockaddr, sa_family))
+		return -EINVAL;
 	/* The following checks are replicated from __ip6_datagram_connect()
 	 * and intended to prevent BPF program called below from accessing
 	 * bytes that are out of the bound specified by user in addr_len.
diff --git a/net/ipv6/xfrm6_tunnel.c b/net/ipv6/xfrm6_tunnel.c
index bc65db782bfb..d9e5f6808811 100644
--- a/net/ipv6/xfrm6_tunnel.c
+++ b/net/ipv6/xfrm6_tunnel.c
@@ -345,7 +345,7 @@ static void __net_exit xfrm6_tunnel_net_exit(struct net *net)
 	unsigned int i;
 
 	xfrm_flush_gc();
-	xfrm_state_flush(net, IPSEC_PROTO_ANY, false, true);
+	xfrm_state_flush(net, 0, false, true);
 
 	for (i = 0; i < XFRM6_TUNNEL_SPI_BYADDR_HSIZE; i++)
 		WARN_ON_ONCE(!hlist_empty(&xfrm6_tn->spi_byaddr[i]));
@@ -402,6 +402,10 @@ static void __exit xfrm6_tunnel_fini(void)
 	xfrm6_tunnel_deregister(&xfrm6_tunnel_handler, AF_INET6);
 	xfrm_unregister_type(&xfrm6_tunnel_type, AF_INET6);
 	unregister_pernet_subsys(&xfrm6_tunnel_net_ops);
+	/* Someone maybe has gotten the xfrm6_tunnel_spi.
+	 * So need to wait it.
+	 */
+	rcu_barrier();
 	kmem_cache_destroy(xfrm6_tunnel_spi_kmem);
 }
 
diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c
index c5c5ab6c5a1c..44fdc641710d 100644
--- a/net/kcm/kcmsock.c
+++ b/net/kcm/kcmsock.c
@@ -2054,14 +2054,14 @@ static int __init kcm_init(void)
 	if (err)
 		goto fail;
 
-	err = sock_register(&kcm_family_ops);
-	if (err)
-		goto sock_register_fail;
-
 	err = register_pernet_device(&kcm_net_ops);
 	if (err)
 		goto net_ops_fail;
 
+	err = sock_register(&kcm_family_ops);
+	if (err)
+		goto sock_register_fail;
+
 	err = kcm_proc_init();
 	if (err)
 		goto proc_init_fail;
@@ -2069,12 +2069,12 @@ static int __init kcm_init(void)
 	return 0;
 
 proc_init_fail:
-	unregister_pernet_device(&kcm_net_ops);
-
-net_ops_fail:
 	sock_unregister(PF_KCM);
 
 sock_register_fail:
+	unregister_pernet_device(&kcm_net_ops);
+
+net_ops_fail:
 	proto_unregister(&kcm_proto);
 
 fail:
@@ -2090,8 +2090,8 @@ fail:
 static void __exit kcm_exit(void)
 {
 	kcm_proc_exit();
-	unregister_pernet_device(&kcm_net_ops);
 	sock_unregister(PF_KCM);
+	unregister_pernet_device(&kcm_net_ops);
 	proto_unregister(&kcm_proto);
 	destroy_workqueue(kcm_wq);
 
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 5651c29cb5bd..4af1e1d60b9f 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -1951,8 +1951,10 @@ parse_ipsecrequest(struct xfrm_policy *xp, struct sadb_x_ipsecrequest *rq)
 
 	if (rq->sadb_x_ipsecrequest_mode == 0)
 		return -EINVAL;
+	if (!xfrm_id_proto_valid(rq->sadb_x_ipsecrequest_proto))
+		return -EINVAL;
 
-	t->id.proto = rq->sadb_x_ipsecrequest_proto; /* XXX check proto */
+	t->id.proto = rq->sadb_x_ipsecrequest_proto;
 	if ((mode = pfkey_mode_to_xfrm(rq->sadb_x_ipsecrequest_mode)) < 0)
 		return -EINVAL;
 	t->mode = mode;
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index fed6becc5daf..52b5a2797c0c 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -169,8 +169,8 @@ struct l2tp_tunnel *l2tp_tunnel_get(const struct net *net, u32 tunnel_id)
 
 	rcu_read_lock_bh();
 	list_for_each_entry_rcu(tunnel, &pn->l2tp_tunnel_list, list) {
-		if (tunnel->tunnel_id == tunnel_id) {
-			l2tp_tunnel_inc_refcount(tunnel);
+		if (tunnel->tunnel_id == tunnel_id &&
+		    refcount_inc_not_zero(&tunnel->ref_count)) {
 			rcu_read_unlock_bh();
 
 			return tunnel;
@@ -190,8 +190,8 @@ struct l2tp_tunnel *l2tp_tunnel_get_nth(const struct net *net, int nth)
 
 	rcu_read_lock_bh();
 	list_for_each_entry_rcu(tunnel, &pn->l2tp_tunnel_list, list) {
-		if (++count > nth) {
-			l2tp_tunnel_inc_refcount(tunnel);
+		if (++count > nth &&
+		    refcount_inc_not_zero(&tunnel->ref_count)) {
 			rcu_read_unlock_bh();
 			return tunnel;
 		}
@@ -909,7 +909,7 @@ int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
 {
 	struct l2tp_tunnel *tunnel;
 
-	tunnel = l2tp_tunnel(sk);
+	tunnel = rcu_dereference_sk_user_data(sk);
 	if (tunnel == NULL)
 		goto pass_up;
 
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index b99e73a7e7e0..2017b7d780f5 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -320,14 +320,13 @@ static int llc_ui_bind(struct socket *sock, struct sockaddr *uaddr, int addrlen)
 	struct llc_sap *sap;
 	int rc = -EINVAL;
 
-	dprintk("%s: binding %02X\n", __func__, addr->sllc_sap);
-
 	lock_sock(sk);
 	if (unlikely(!sock_flag(sk, SOCK_ZAPPED) || addrlen != sizeof(*addr)))
 		goto out;
 	rc = -EAFNOSUPPORT;
 	if (unlikely(addr->sllc_family != AF_LLC))
 		goto out;
+	dprintk("%s: binding %02X\n", __func__, addr->sllc_sap);
 	rc = -ENODEV;
 	rcu_read_lock();
 	if (sk->sk_bound_dev_if) {
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index cff0fb3578c9..deb3faf08337 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -841,7 +841,7 @@ void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata)
 
 	dir = sdata->vif.debugfs_dir;
 
-	if (!dir)
+	if (IS_ERR_OR_NULL(dir))
 		return;
 
 	sprintf(buf, "netdev:%s", sdata->name);
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 28d022a3eee3..ae4f0be3b393 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1195,6 +1195,9 @@ static inline void drv_wake_tx_queue(struct ieee80211_local *local,
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->txq.vif);
 
+	if (local->in_reconfig)
+		return;
+
 	if (!check_sdata_in_driver(sdata))
 		return;
 
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index e03c46ac8e4d..c62101857b9b 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -112,8 +112,9 @@ void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
 			     IEEE80211_HT_CAP_TX_STBC);
 
 	/* Allow user to configure RX STBC bits */
-	if (ht_capa_mask->cap_info & IEEE80211_HT_CAP_RX_STBC)
-		ht_cap->cap |= ht_capa->cap_info & IEEE80211_HT_CAP_RX_STBC;
+	if (ht_capa_mask->cap_info & cpu_to_le16(IEEE80211_HT_CAP_RX_STBC))
+		ht_cap->cap |= le16_to_cpu(ht_capa->cap_info) &
+					IEEE80211_HT_CAP_RX_STBC;
 
 	/* Allow user to decrease AMPDU factor */
 	if (ht_capa_mask->ampdu_params_info &
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 4a6ff1482a9f..02d2e6f11e93 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1908,6 +1908,9 @@ void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata)
 	list_del_rcu(&sdata->list);
 	mutex_unlock(&sdata->local->iflist_mtx);
 
+	if (sdata->vif.txq)
+		ieee80211_txq_purge(sdata->local, to_txq_info(sdata->vif.txq));
+
 	synchronize_rcu();
 
 	if (sdata->dev) {
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 4700718e010f..37e372896230 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -167,8 +167,10 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 		 * The driver doesn't know anything about VLAN interfaces.
 		 * Hence, don't send GTKs for VLAN interfaces to the driver.
 		 */
-		if (!(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE))
+		if (!(key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+			ret = 1;
 			goto out_unsupported;
+		}
 	}
 
 	ret = drv_set_key(key->local, SET_KEY, sdata,
@@ -213,11 +215,8 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
 		/* all of these we can do in software - if driver can */
 		if (ret == 1)
 			return 0;
-		if (ieee80211_hw_check(&key->local->hw, SW_CRYPTO_CONTROL)) {
-			if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
-				return 0;
+		if (ieee80211_hw_check(&key->local->hw, SW_CRYPTO_CONTROL))
 			return -EINVAL;
-		}
 		return 0;
 	default:
 		return -EINVAL;
diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c
index 95eb5064fa91..b76a2aefa9ec 100644
--- a/net/mac80211/mesh_pathtbl.c
+++ b/net/mac80211/mesh_pathtbl.c
@@ -23,7 +23,7 @@ static void mesh_path_free_rcu(struct mesh_table *tbl, struct mesh_path *mpath);
 static u32 mesh_table_hash(const void *addr, u32 len, u32 seed)
 {
 	/* Use last four bytes of hw addr as hash index */
-	return jhash_1word(*(u32 *)(addr+2), seed);
+	return jhash_1word(__get_unaligned_cpu32((u8 *)addr + 2), seed);
 }
 
 static const struct rhashtable_params mesh_rht_params = {
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 7f8d93401ce0..bf0b187f994e 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1568,7 +1568,15 @@ static void sta_ps_start(struct sta_info *sta)
 		return;
 
 	for (tid = 0; tid < IEEE80211_NUM_TIDS; tid++) {
-		if (txq_has_queue(sta->sta.txq[tid]))
+		struct ieee80211_txq *txq = sta->sta.txq[tid];
+		struct txq_info *txqi = to_txq_info(txq);
+
+		spin_lock(&local->active_txq_lock[txq->ac]);
+		if (!list_empty(&txqi->schedule_order))
+			list_del_init(&txqi->schedule_order);
+		spin_unlock(&local->active_txq_lock[txq->ac]);
+
+		if (txq_has_queue(txq))
 			set_bit(tid, &sta->txq_buffered_tids);
 		else
 			clear_bit(tid, &sta->txq_buffered_tids);
diff --git a/net/mac80211/trace_msg.h b/net/mac80211/trace_msg.h
index 366b9e6f043e..40141df09f25 100644
--- a/net/mac80211/trace_msg.h
+++ b/net/mac80211/trace_msg.h
@@ -1,4 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Portions of this file
+ * Copyright (C) 2019 Intel Corporation
+ */
+
 #ifdef CONFIG_MAC80211_MESSAGE_TRACING
 
 #if !defined(__MAC80211_MSG_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
@@ -11,7 +16,7 @@
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mac80211_msg
 
-#define MAX_MSG_LEN	100
+#define MAX_MSG_LEN	120
 
 DECLARE_EVENT_CLASS(mac80211_msg_event,
 	TP_PROTO(struct va_format *vaf),
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 8a49a74c0a37..2e816dd67be7 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3221,6 +3221,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	u8 max_subframes = sta->sta.max_amsdu_subframes;
 	int max_frags = local->hw.max_tx_fragments;
 	int max_amsdu_len = sta->sta.max_amsdu_len;
+	int orig_truesize;
 	__be16 len;
 	void *data;
 	bool ret = false;
@@ -3261,6 +3262,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	if (!head || skb_is_gso(head))
 		goto out;
 
+	orig_truesize = head->truesize;
 	orig_len = head->len;
 
 	if (skb->len + head->len > max_amsdu_len)
@@ -3318,6 +3320,7 @@ static bool ieee80211_amsdu_aggregate(struct ieee80211_sub_if_data *sdata,
 	*frag_tail = skb;
 
 out_recalc:
+	fq->memory_usage += head->truesize - orig_truesize;
 	if (head->len != orig_len) {
 		flow->backlog += head->len - orig_len;
 		tin->backlog_bytes += head->len - orig_len;
@@ -3646,16 +3649,17 @@ EXPORT_SYMBOL(ieee80211_tx_dequeue);
 struct ieee80211_txq *ieee80211_next_txq(struct ieee80211_hw *hw, u8 ac)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
+	struct ieee80211_txq *ret = NULL;
 	struct txq_info *txqi = NULL;
 
-	lockdep_assert_held(&local->active_txq_lock[ac]);
+	spin_lock_bh(&local->active_txq_lock[ac]);
 
  begin:
 	txqi = list_first_entry_or_null(&local->active_txqs[ac],
 					struct txq_info,
 					schedule_order);
 	if (!txqi)
-		return NULL;
+		goto out;
 
 	if (txqi->txq.sta) {
 		struct sta_info *sta = container_of(txqi->txq.sta,
@@ -3672,24 +3676,30 @@ struct ieee80211_txq *ieee80211_next_txq(struct ieee80211_hw *hw, u8 ac)
 
 
 	if (txqi->schedule_round == local->schedule_round[ac])
-		return NULL;
+		goto out;
 
 	list_del_init(&txqi->schedule_order);
 	txqi->schedule_round = local->schedule_round[ac];
-	return &txqi->txq;
+	ret = &txqi->txq;
+
+out:
+	spin_unlock_bh(&local->active_txq_lock[ac]);
+	return ret;
 }
 EXPORT_SYMBOL(ieee80211_next_txq);
 
-void ieee80211_return_txq(struct ieee80211_hw *hw,
-			  struct ieee80211_txq *txq)
+void __ieee80211_schedule_txq(struct ieee80211_hw *hw,
+			      struct ieee80211_txq *txq,
+			      bool force)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 	struct txq_info *txqi = to_txq_info(txq);
 
-	lockdep_assert_held(&local->active_txq_lock[txq->ac]);
+	spin_lock_bh(&local->active_txq_lock[txq->ac]);
 
 	if (list_empty(&txqi->schedule_order) &&
-	    (!skb_queue_empty(&txqi->frags) || txqi->tin.backlog_packets)) {
+	    (force || !skb_queue_empty(&txqi->frags) ||
+	     txqi->tin.backlog_packets)) {
 		/* If airtime accounting is active, always enqueue STAs at the
 		 * head of the list to ensure that they only get moved to the
 		 * back by the airtime DRR scheduler once they have a negative
@@ -3706,20 +3716,10 @@ void ieee80211_return_txq(struct ieee80211_hw *hw,
 			list_add_tail(&txqi->schedule_order,
 				      &local->active_txqs[txq->ac]);
 	}
-}
-EXPORT_SYMBOL(ieee80211_return_txq);
 
-void ieee80211_schedule_txq(struct ieee80211_hw *hw,
-			    struct ieee80211_txq *txq)
-	__acquires(txq_lock) __releases(txq_lock)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-
-	spin_lock_bh(&local->active_txq_lock[txq->ac]);
-	ieee80211_return_txq(hw, txq);
 	spin_unlock_bh(&local->active_txq_lock[txq->ac]);
 }
-EXPORT_SYMBOL(ieee80211_schedule_txq);
+EXPORT_SYMBOL(__ieee80211_schedule_txq);
 
 bool ieee80211_txq_may_transmit(struct ieee80211_hw *hw,
 				struct ieee80211_txq *txq)
@@ -3729,7 +3729,7 @@ bool ieee80211_txq_may_transmit(struct ieee80211_hw *hw,
 	struct sta_info *sta;
 	u8 ac = txq->ac;
 
-	lockdep_assert_held(&local->active_txq_lock[ac]);
+	spin_lock_bh(&local->active_txq_lock[ac]);
 
 	if (!txqi->txq.sta)
 		goto out;
@@ -3759,34 +3759,27 @@ bool ieee80211_txq_may_transmit(struct ieee80211_hw *hw,
 
 	sta->airtime[ac].deficit += sta->airtime_weight;
 	list_move_tail(&txqi->schedule_order, &local->active_txqs[ac]);
+	spin_unlock_bh(&local->active_txq_lock[ac]);
 
 	return false;
 out:
 	if (!list_empty(&txqi->schedule_order))
 		list_del_init(&txqi->schedule_order);
+	spin_unlock_bh(&local->active_txq_lock[ac]);
 
 	return true;
 }
 EXPORT_SYMBOL(ieee80211_txq_may_transmit);
 
 void ieee80211_txq_schedule_start(struct ieee80211_hw *hw, u8 ac)
-	__acquires(txq_lock)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
 
 	spin_lock_bh(&local->active_txq_lock[ac]);
 	local->schedule_round[ac]++;
-}
-EXPORT_SYMBOL(ieee80211_txq_schedule_start);
-
-void ieee80211_txq_schedule_end(struct ieee80211_hw *hw, u8 ac)
-	__releases(txq_lock)
-{
-	struct ieee80211_local *local = hw_to_local(hw);
-
 	spin_unlock_bh(&local->active_txq_lock[ac]);
 }
-EXPORT_SYMBOL(ieee80211_txq_schedule_end);
+EXPORT_SYMBOL(ieee80211_txq_schedule_start);
 
 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
 				  struct net_device *dev,
diff --git a/net/mpls/mpls_iptunnel.c b/net/mpls/mpls_iptunnel.c
index dda8930f20e7..f3a8557494d6 100644
--- a/net/mpls/mpls_iptunnel.c
+++ b/net/mpls/mpls_iptunnel.c
@@ -140,9 +140,15 @@ static int mpls_xmit(struct sk_buff *skb)
 	if (rt)
 		err = neigh_xmit(NEIGH_ARP_TABLE, out_dev, &rt->rt_gateway,
 				 skb);
-	else if (rt6)
-		err = neigh_xmit(NEIGH_ND_TABLE, out_dev, &rt6->rt6i_gateway,
-				 skb);
+	else if (rt6) {
+		if (ipv6_addr_v4mapped(&rt6->rt6i_gateway)) {
+			/* 6PE (RFC 4798) */
+			err = neigh_xmit(NEIGH_ARP_TABLE, out_dev, &rt6->rt6i_gateway.s6_addr32[3],
+					 skb);
+		} else
+			err = neigh_xmit(NEIGH_ND_TABLE, out_dev, &rt6->rt6i_gateway,
+					 skb);
+	}
 	if (err)
 		net_dbg_ratelimited("%s: packet transmission failed: %d\n",
 				    __func__, err);
diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
index 5d782445d2fc..bad17bba8ba7 100644
--- a/net/ncsi/ncsi-netlink.c
+++ b/net/ncsi/ncsi-netlink.c
@@ -251,6 +251,10 @@ static int ncsi_pkg_info_all_nl(struct sk_buff *skb,
 	}
 
 	attr = nla_nest_start(skb, NCSI_ATTR_PACKAGE_LIST);
+	if (!attr) {
+		rc = -EMSGSIZE;
+		goto err;
+	}
 	rc = ncsi_write_package_info(skb, ndp, package->id);
 	if (rc) {
 		nla_nest_cancel(skb, attr);
diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
index dc07fcc7938e..802db01e3075 100644
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/netdevice.h>
+#include <linux/etherdevice.h>
 #include <linux/skbuff.h>
 
 #include <net/ncsi.h>
@@ -667,7 +668,10 @@ static int ncsi_rsp_handler_oem_bcm_gma(struct ncsi_request *nr)
 	ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 	memcpy(saddr.sa_data, &rsp->data[BCM_MAC_ADDR_OFFSET], ETH_ALEN);
 	/* Increase mac address by 1 for BMC's address */
-	saddr.sa_data[ETH_ALEN - 1]++;
+	eth_addr_inc((u8 *)saddr.sa_data);
+	if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
+		return -ENXIO;
+
 	ret = ops->ndo_set_mac_address(ndev, &saddr);
 	if (ret < 0)
 		netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index d43ffb09939b..6548271209a0 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -1007,6 +1007,7 @@ config NETFILTER_XT_TARGET_TEE
 	depends on NETFILTER_ADVANCED
 	depends on IPV6 || IPV6=n
 	depends on !NF_CONNTRACK || NF_CONNTRACK
+	depends on IP6_NF_IPTABLES || !IP6_NF_IPTABLES
 	select NF_DUP_IPV4
 	select NF_DUP_IPV6 if IP6_NF_IPTABLES
 	---help---
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 43bbaa32b1d6..14457551bcb4 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1678,7 +1678,7 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related,
 	if (!cp) {
 		int v;
 
-		if (!sysctl_schedule_icmp(ipvs))
+		if (ipip || !sysctl_schedule_icmp(ipvs))
 			return NF_ACCEPT;
 
 		if (!ip_vs_try_to_schedule(ipvs, AF_INET, skb, pd, &v, &cp, &ciph))
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 82bfbeef46af..2a714527cde1 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/random.h>
 #include <linux/jhash.h>
+#include <linux/siphash.h>
 #include <linux/err.h>
 #include <linux/percpu.h>
 #include <linux/moduleparam.h>
@@ -449,6 +450,40 @@ nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
 }
 EXPORT_SYMBOL_GPL(nf_ct_invert_tuple);
 
+/* Generate a almost-unique pseudo-id for a given conntrack.
+ *
+ * intentionally doesn't re-use any of the seeds used for hash
+ * table location, we assume id gets exposed to userspace.
+ *
+ * Following nf_conn items do not change throughout lifetime
+ * of the nf_conn after it has been committed to main hash table:
+ *
+ * 1. nf_conn address
+ * 2. nf_conn->ext address
+ * 3. nf_conn->master address (normally NULL)
+ * 4. tuple
+ * 5. the associated net namespace
+ */
+u32 nf_ct_get_id(const struct nf_conn *ct)
+{
+	static __read_mostly siphash_key_t ct_id_seed;
+	unsigned long a, b, c, d;
+
+	net_get_random_once(&ct_id_seed, sizeof(ct_id_seed));
+
+	a = (unsigned long)ct;
+	b = (unsigned long)ct->master ^ net_hash_mix(nf_ct_net(ct));
+	c = (unsigned long)ct->ext;
+	d = (unsigned long)siphash(&ct->tuplehash, sizeof(ct->tuplehash),
+				   &ct_id_seed);
+#ifdef CONFIG_64BIT
+	return siphash_4u64((u64)a, (u64)b, (u64)c, (u64)d, &ct_id_seed);
+#else
+	return siphash_4u32((u32)a, (u32)b, (u32)c, (u32)d, &ct_id_seed);
+#endif
+}
+EXPORT_SYMBOL_GPL(nf_ct_get_id);
+
 static void
 clean_from_lists(struct nf_conn *ct)
 {
@@ -982,12 +1017,9 @@ __nf_conntrack_confirm(struct sk_buff *skb)
 
 	/* set conntrack timestamp, if enabled. */
 	tstamp = nf_conn_tstamp_find(ct);
-	if (tstamp) {
-		if (skb->tstamp == 0)
-			__net_timestamp(skb);
+	if (tstamp)
+		tstamp->start = ktime_get_real_ns();
 
-		tstamp->start = ktime_to_ns(skb->tstamp);
-	}
 	/* Since the lookup is lockless, hash insertion must be done after
 	 * starting the timer and setting the CONFIRMED bit. The RCU barriers
 	 * guarantee that no other CPU can find the conntrack before the above
@@ -1350,6 +1382,7 @@ __nf_conntrack_alloc(struct net *net,
 	/* save hash for reusing when confirming */
 	*(unsigned long *)(&ct->tuplehash[IP_CT_DIR_REPLY].hnnode.pprev) = hash;
 	ct->status = 0;
+	ct->timeout = 0;
 	write_pnet(&ct->ct_net, net);
 	memset(&ct->__nfct_init_offset[0], 0,
 	       offsetof(struct nf_conn, proto) -
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index 66c596d287a5..d7f61b0547c6 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -29,6 +29,7 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 #include <linux/slab.h>
+#include <linux/siphash.h>
 
 #include <linux/netfilter.h>
 #include <net/netlink.h>
@@ -485,7 +486,9 @@ nla_put_failure:
 
 static int ctnetlink_dump_id(struct sk_buff *skb, const struct nf_conn *ct)
 {
-	if (nla_put_be32(skb, CTA_ID, htonl((unsigned long)ct)))
+	__be32 id = (__force __be32)nf_ct_get_id(ct);
+
+	if (nla_put_be32(skb, CTA_ID, id))
 		goto nla_put_failure;
 	return 0;
 
@@ -1286,8 +1289,9 @@ static int ctnetlink_del_conntrack(struct net *net, struct sock *ctnl,
 	}
 
 	if (cda[CTA_ID]) {
-		u_int32_t id = ntohl(nla_get_be32(cda[CTA_ID]));
-		if (id != (u32)(unsigned long)ct) {
+		__be32 id = nla_get_be32(cda[CTA_ID]);
+
+		if (id != (__force __be32)nf_ct_get_id(ct)) {
 			nf_ct_put(ct);
 			return -ENOENT;
 		}
@@ -2692,6 +2696,25 @@ nla_put_failure:
 
 static const union nf_inet_addr any_addr;
 
+static __be32 nf_expect_get_id(const struct nf_conntrack_expect *exp)
+{
+	static __read_mostly siphash_key_t exp_id_seed;
+	unsigned long a, b, c, d;
+
+	net_get_random_once(&exp_id_seed, sizeof(exp_id_seed));
+
+	a = (unsigned long)exp;
+	b = (unsigned long)exp->helper;
+	c = (unsigned long)exp->master;
+	d = (unsigned long)siphash(&exp->tuple, sizeof(exp->tuple), &exp_id_seed);
+
+#ifdef CONFIG_64BIT
+	return (__force __be32)siphash_4u64((u64)a, (u64)b, (u64)c, (u64)d, &exp_id_seed);
+#else
+	return (__force __be32)siphash_4u32((u32)a, (u32)b, (u32)c, (u32)d, &exp_id_seed);
+#endif
+}
+
 static int
 ctnetlink_exp_dump_expect(struct sk_buff *skb,
 			  const struct nf_conntrack_expect *exp)
@@ -2739,7 +2762,7 @@ ctnetlink_exp_dump_expect(struct sk_buff *skb,
 	}
 #endif
 	if (nla_put_be32(skb, CTA_EXPECT_TIMEOUT, htonl(timeout)) ||
-	    nla_put_be32(skb, CTA_EXPECT_ID, htonl((unsigned long)exp)) ||
+	    nla_put_be32(skb, CTA_EXPECT_ID, nf_expect_get_id(exp)) ||
 	    nla_put_be32(skb, CTA_EXPECT_FLAGS, htonl(exp->flags)) ||
 	    nla_put_be32(skb, CTA_EXPECT_CLASS, htonl(exp->class)))
 		goto nla_put_failure;
@@ -3044,7 +3067,8 @@ static int ctnetlink_get_expect(struct net *net, struct sock *ctnl,
 
 	if (cda[CTA_EXPECT_ID]) {
 		__be32 id = nla_get_be32(cda[CTA_EXPECT_ID]);
-		if (ntohl(id) != (u32)(unsigned long)exp) {
+
+		if (id != nf_expect_get_id(exp)) {
 			nf_ct_expect_put(exp);
 			return -ENOENT;
 		}
diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c
index b9403a266a2e..37bb530d848f 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -55,7 +55,7 @@ void nf_l4proto_log_invalid(const struct sk_buff *skb,
 	struct va_format vaf;
 	va_list args;
 
-	if (net->ct.sysctl_log_invalid != protonum ||
+	if (net->ct.sysctl_log_invalid != protonum &&
 	    net->ct.sysctl_log_invalid != IPPROTO_RAW)
 		return;
 
diff --git a/net/netfilter/nf_conntrack_proto_icmp.c b/net/netfilter/nf_conntrack_proto_icmp.c
index 7df477996b16..9becac953587 100644
--- a/net/netfilter/nf_conntrack_proto_icmp.c
+++ b/net/netfilter/nf_conntrack_proto_icmp.c
@@ -103,49 +103,94 @@ int nf_conntrack_icmp_packet(struct nf_conn *ct,
 	return NF_ACCEPT;
 }
 
-/* Returns conntrack if it dealt with ICMP, and filled in skb fields */
-static int
-icmp_error_message(struct nf_conn *tmpl, struct sk_buff *skb,
-		   const struct nf_hook_state *state)
+/* Check inner header is related to any of the existing connections */
+int nf_conntrack_inet_error(struct nf_conn *tmpl, struct sk_buff *skb,
+			    unsigned int dataoff,
+			    const struct nf_hook_state *state,
+			    u8 l4proto, union nf_inet_addr *outer_daddr)
 {
 	struct nf_conntrack_tuple innertuple, origtuple;
 	const struct nf_conntrack_tuple_hash *h;
 	const struct nf_conntrack_zone *zone;
 	enum ip_conntrack_info ctinfo;
 	struct nf_conntrack_zone tmp;
+	union nf_inet_addr *ct_daddr;
+	enum ip_conntrack_dir dir;
+	struct nf_conn *ct;
 
 	WARN_ON(skb_nfct(skb));
 	zone = nf_ct_zone_tmpl(tmpl, skb, &tmp);
 
 	/* Are they talking about one of our connections? */
-	if (!nf_ct_get_tuplepr(skb,
-			       skb_network_offset(skb) + ip_hdrlen(skb)
-						       + sizeof(struct icmphdr),
-			       PF_INET, state->net, &origtuple)) {
-		pr_debug("icmp_error_message: failed to get tuple\n");
+	if (!nf_ct_get_tuplepr(skb, dataoff,
+			       state->pf, state->net, &origtuple))
 		return -NF_ACCEPT;
-	}
 
 	/* Ordinarily, we'd expect the inverted tupleproto, but it's
 	   been preserved inside the ICMP. */
-	if (!nf_ct_invert_tuple(&innertuple, &origtuple)) {
-		pr_debug("icmp_error_message: no match\n");
+	if (!nf_ct_invert_tuple(&innertuple, &origtuple))
 		return -NF_ACCEPT;
-	}
-
-	ctinfo = IP_CT_RELATED;
 
 	h = nf_conntrack_find_get(state->net, zone, &innertuple);
-	if (!h) {
-		pr_debug("icmp_error_message: no match\n");
+	if (!h)
+		return -NF_ACCEPT;
+
+	/* Consider: A -> T (=This machine) -> B
+	 *   Conntrack entry will look like this:
+	 *      Original:  A->B
+	 *      Reply:     B->T (SNAT case) OR A
+	 *
+	 * When this function runs, we got packet that looks like this:
+	 * iphdr|icmphdr|inner_iphdr|l4header (tcp, udp, ..).
+	 *
+	 * Above nf_conntrack_find_get() makes lookup based on inner_hdr,
+	 * so we should expect that destination of the found connection
+	 * matches outer header destination address.
+	 *
+	 * In above example, we can consider these two cases:
+	 *  1. Error coming in reply direction from B or M (middle box) to
+	 *     T (SNAT case) or A.
+	 *     Inner saddr will be B, dst will be T or A.
+	 *     The found conntrack will be reply tuple (B->T/A).
+	 *  2. Error coming in original direction from A or M to B.
+	 *     Inner saddr will be A, inner daddr will be B.
+	 *     The found conntrack will be original tuple (A->B).
+	 *
+	 * In both cases, conntrack[dir].dst == inner.dst.
+	 *
+	 * A bogus packet could look like this:
+	 *   Inner: B->T
+	 *   Outer: B->X (other machine reachable by T).
+	 *
+	 * In this case, lookup yields connection A->B and will
+	 * set packet from B->X as *RELATED*, even though no connection
+	 * from X was ever seen.
+	 */
+	ct = nf_ct_tuplehash_to_ctrack(h);
+	dir = NF_CT_DIRECTION(h);
+	ct_daddr = &ct->tuplehash[dir].tuple.dst.u3;
+	if (!nf_inet_addr_cmp(outer_daddr, ct_daddr)) {
+		if (state->pf == AF_INET) {
+			nf_l4proto_log_invalid(skb, state->net, state->pf,
+					       l4proto,
+					       "outer daddr %pI4 != inner %pI4",
+					       &outer_daddr->ip, &ct_daddr->ip);
+		} else if (state->pf == AF_INET6) {
+			nf_l4proto_log_invalid(skb, state->net, state->pf,
+					       l4proto,
+					       "outer daddr %pI6 != inner %pI6",
+					       &outer_daddr->ip6, &ct_daddr->ip6);
+		}
+		nf_ct_put(ct);
 		return -NF_ACCEPT;
 	}
 
-	if (NF_CT_DIRECTION(h) == IP_CT_DIR_REPLY)
+	ctinfo = IP_CT_RELATED;
+	if (dir == IP_CT_DIR_REPLY)
 		ctinfo += IP_CT_IS_REPLY;
 
 	/* Update skb to refer to this connection */
-	nf_ct_set(skb, nf_ct_tuplehash_to_ctrack(h), ctinfo);
+	nf_ct_set(skb, ct, ctinfo);
 	return NF_ACCEPT;
 }
 
@@ -162,11 +207,12 @@ int nf_conntrack_icmpv4_error(struct nf_conn *tmpl,
 			      struct sk_buff *skb, unsigned int dataoff,
 			      const struct nf_hook_state *state)
 {
+	union nf_inet_addr outer_daddr;
 	const struct icmphdr *icmph;
 	struct icmphdr _ih;
 
 	/* Not enough header? */
-	icmph = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_ih), &_ih);
+	icmph = skb_header_pointer(skb, dataoff, sizeof(_ih), &_ih);
 	if (icmph == NULL) {
 		icmp_error_log(skb, state, "short packet");
 		return -NF_ACCEPT;
@@ -199,7 +245,12 @@ int nf_conntrack_icmpv4_error(struct nf_conn *tmpl,
 	    icmph->type != ICMP_REDIRECT)
 		return NF_ACCEPT;
 
-	return icmp_error_message(tmpl, skb, state);
+	memset(&outer_daddr, 0, sizeof(outer_daddr));
+	outer_daddr.ip = ip_hdr(skb)->daddr;
+
+	dataoff += sizeof(*icmph);
+	return nf_conntrack_inet_error(tmpl, skb, dataoff, state,
+				       IPPROTO_ICMP, &outer_daddr);
 }
 
 #if IS_ENABLED(CONFIG_NF_CT_NETLINK)
diff --git a/net/netfilter/nf_conntrack_proto_icmpv6.c b/net/netfilter/nf_conntrack_proto_icmpv6.c
index bec4a3211658..c63ee3612855 100644
--- a/net/netfilter/nf_conntrack_proto_icmpv6.c
+++ b/net/netfilter/nf_conntrack_proto_icmpv6.c
@@ -123,51 +123,6 @@ int nf_conntrack_icmpv6_packet(struct nf_conn *ct,
 	return NF_ACCEPT;
 }
 
-static int
-icmpv6_error_message(struct net *net, struct nf_conn *tmpl,
-		     struct sk_buff *skb,
-		     unsigned int icmp6off)
-{
-	struct nf_conntrack_tuple intuple, origtuple;
-	const struct nf_conntrack_tuple_hash *h;
-	enum ip_conntrack_info ctinfo;
-	struct nf_conntrack_zone tmp;
-
-	WARN_ON(skb_nfct(skb));
-
-	/* Are they talking about one of our connections? */
-	if (!nf_ct_get_tuplepr(skb,
-			       skb_network_offset(skb)
-				+ sizeof(struct ipv6hdr)
-				+ sizeof(struct icmp6hdr),
-			       PF_INET6, net, &origtuple)) {
-		pr_debug("icmpv6_error: Can't get tuple\n");
-		return -NF_ACCEPT;
-	}
-
-	/* Ordinarily, we'd expect the inverted tupleproto, but it's
-	   been preserved inside the ICMP. */
-	if (!nf_ct_invert_tuple(&intuple, &origtuple)) {
-		pr_debug("icmpv6_error: Can't invert tuple\n");
-		return -NF_ACCEPT;
-	}
-
-	ctinfo = IP_CT_RELATED;
-
-	h = nf_conntrack_find_get(net, nf_ct_zone_tmpl(tmpl, skb, &tmp),
-				  &intuple);
-	if (!h) {
-		pr_debug("icmpv6_error: no match\n");
-		return -NF_ACCEPT;
-	} else {
-		if (NF_CT_DIRECTION(h) == IP_CT_DIR_REPLY)
-			ctinfo += IP_CT_IS_REPLY;
-	}
-
-	/* Update skb to refer to this connection */
-	nf_ct_set(skb, nf_ct_tuplehash_to_ctrack(h), ctinfo);
-	return NF_ACCEPT;
-}
 
 static void icmpv6_error_log(const struct sk_buff *skb,
 			     const struct nf_hook_state *state,
@@ -182,6 +137,7 @@ int nf_conntrack_icmpv6_error(struct nf_conn *tmpl,
 			      unsigned int dataoff,
 			      const struct nf_hook_state *state)
 {
+	union nf_inet_addr outer_daddr;
 	const struct icmp6hdr *icmp6h;
 	struct icmp6hdr _ih;
 	int type;
@@ -210,7 +166,11 @@ int nf_conntrack_icmpv6_error(struct nf_conn *tmpl,
 	if (icmp6h->icmp6_type >= 128)
 		return NF_ACCEPT;
 
-	return icmpv6_error_message(state->net, tmpl, skb, dataoff);
+	memcpy(&outer_daddr.ip6, &ipv6_hdr(skb)->daddr,
+	       sizeof(outer_daddr.ip6));
+	dataoff += sizeof(*icmp6h);
+	return nf_conntrack_inet_error(tmpl, skb, dataoff, state,
+				       IPPROTO_ICMPV6, &outer_daddr);
 }
 
 #if IS_ENABLED(CONFIG_NF_CT_NETLINK)
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index f067c6b50857..39fcc1ed18f3 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -20,9 +20,9 @@
 #include <linux/udp.h>
 #include <linux/tcp.h>
 #include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter_ipv6.h>
 
-#include <net/route.h>
-#include <net/ip6_route.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_conntrack_core.h>
 #include <net/netfilter/nf_conntrack_expect.h>
@@ -871,38 +871,33 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 	} else if (sip_external_media) {
 		struct net_device *dev = skb_dst(skb)->dev;
 		struct net *net = dev_net(dev);
-		struct rtable *rt;
-		struct flowi4 fl4 = {};
-#if IS_ENABLED(CONFIG_IPV6)
-		struct flowi6 fl6 = {};
-#endif
+		struct flowi fl;
 		struct dst_entry *dst = NULL;
 
+		memset(&fl, 0, sizeof(fl));
+
 		switch (nf_ct_l3num(ct)) {
 			case NFPROTO_IPV4:
-				fl4.daddr = daddr->ip;
-				rt = ip_route_output_key(net, &fl4);
-				if (!IS_ERR(rt))
-					dst = &rt->dst;
+				fl.u.ip4.daddr = daddr->ip;
+				nf_ip_route(net, &dst, &fl, false);
 				break;
 
-#if IS_ENABLED(CONFIG_IPV6)
 			case NFPROTO_IPV6:
-				fl6.daddr = daddr->in6;
-				dst = ip6_route_output(net, NULL, &fl6);
-				if (dst->error) {
-					dst_release(dst);
-					dst = NULL;
-				}
+				fl.u.ip6.daddr = daddr->in6;
+				nf_ip6_route(net, &dst, &fl, false);
 				break;
-#endif
 		}
 
 		/* Don't predict any conntracks when media endpoint is reachable
 		 * through the same interface as the signalling peer.
 		 */
-		if (dst && dst->dev == dev)
-			return NF_ACCEPT;
+		if (dst) {
+			bool external_media = (dst->dev == dev);
+
+			dst_release(dst);
+			if (external_media)
+				return NF_ACCEPT;
+		}
 	}
 
 	/* We need to check whether the registration exists before attempting
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index af7dc6537758..000952719adf 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -415,9 +415,14 @@ static void nf_nat_l4proto_unique_tuple(struct nf_conntrack_tuple *tuple,
 	case IPPROTO_ICMPV6:
 		/* id is same for either direction... */
 		keyptr = &tuple->src.u.icmp.id;
-		min = range->min_proto.icmp.id;
-		range_size = ntohs(range->max_proto.icmp.id) -
-			     ntohs(range->min_proto.icmp.id) + 1;
+		if (!(range->flags & NF_NAT_RANGE_PROTO_SPECIFIED)) {
+			min = 0;
+			range_size = 65536;
+		} else {
+			min = ntohs(range->min_proto.icmp.id);
+			range_size = ntohs(range->max_proto.icmp.id) -
+				     ntohs(range->min_proto.icmp.id) + 1;
+		}
 		goto find_free_id;
 #if IS_ENABLED(CONFIG_NF_CT_PROTO_GRE)
 	case IPPROTO_GRE:
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 513f93118604..1606eaa5ae0d 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1545,7 +1545,7 @@ static int nft_chain_parse_hook(struct net *net,
 		if (IS_ERR(type))
 			return PTR_ERR(type);
 	}
-	if (!(type->hook_mask & (1 << hook->num)))
+	if (hook->num > NF_MAX_HOOKS || !(type->hook_mask & (1 << hook->num)))
 		return -EOPNOTSUPP;
 
 	if (type->type == NFT_CHAIN_T_NAT &&
@@ -2806,8 +2806,11 @@ err2:
 	nf_tables_rule_release(&ctx, rule);
 err1:
 	for (i = 0; i < n; i++) {
-		if (info[i].ops != NULL)
+		if (info[i].ops) {
 			module_put(info[i].ops->type->owner);
+			if (info[i].ops->type->release_ops)
+				info[i].ops->type->release_ops(info[i].ops);
+		}
 	}
 	kvfree(info);
 	return err;
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index b1f9c5303f02..0b3347570265 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -540,7 +540,7 @@ __build_packet_message(struct nfnl_log_net *log,
 			goto nla_put_failure;
 	}
 
-	if (skb->tstamp) {
+	if (hooknum <= NF_INET_FORWARD && skb->tstamp) {
 		struct nfulnl_msg_packet_timestamp ts;
 		struct timespec64 kts = ktime_to_timespec64(skb->tstamp);
 		ts.sec = cpu_to_be64(kts.tv_sec);
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 0dcc3592d053..e057b2961d31 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -582,7 +582,7 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
 	if (nfqnl_put_bridge(entry, skb) < 0)
 		goto nla_put_failure;
 
-	if (entskb->tstamp) {
+	if (entry->state.hook <= NF_INET_FORWARD && entskb->tstamp) {
 		struct nfqnl_msg_packet_timestamp ts;
 		struct timespec64 kts = ktime_to_timespec64(entskb->tstamp);
 
diff --git a/net/netfilter/nft_objref.c b/net/netfilter/nft_objref.c
index 457a9ceb46af..8dfa798ea683 100644
--- a/net/netfilter/nft_objref.c
+++ b/net/netfilter/nft_objref.c
@@ -65,21 +65,34 @@ nla_put_failure:
 	return -1;
 }
 
-static void nft_objref_destroy(const struct nft_ctx *ctx,
-			       const struct nft_expr *expr)
+static void nft_objref_deactivate(const struct nft_ctx *ctx,
+				  const struct nft_expr *expr,
+				  enum nft_trans_phase phase)
 {
 	struct nft_object *obj = nft_objref_priv(expr);
 
+	if (phase == NFT_TRANS_COMMIT)
+		return;
+
 	obj->use--;
 }
 
+static void nft_objref_activate(const struct nft_ctx *ctx,
+				const struct nft_expr *expr)
+{
+	struct nft_object *obj = nft_objref_priv(expr);
+
+	obj->use++;
+}
+
 static struct nft_expr_type nft_objref_type;
 static const struct nft_expr_ops nft_objref_ops = {
 	.type		= &nft_objref_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_object *)),
 	.eval		= nft_objref_eval,
 	.init		= nft_objref_init,
-	.destroy	= nft_objref_destroy,
+	.activate	= nft_objref_activate,
+	.deactivate	= nft_objref_deactivate,
 	.dump		= nft_objref_dump,
 };
 
diff --git a/net/netfilter/nft_redir.c b/net/netfilter/nft_redir.c
index f8092926f704..a340cd8a751b 100644
--- a/net/netfilter/nft_redir.c
+++ b/net/netfilter/nft_redir.c
@@ -233,5 +233,5 @@ module_exit(nft_redir_module_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Arturo Borrero Gonzalez <arturo@debian.org>");
-MODULE_ALIAS_NFT_AF_EXPR(AF_INET4, "redir");
+MODULE_ALIAS_NFT_AF_EXPR(AF_INET, "redir");
 MODULE_ALIAS_NFT_AF_EXPR(AF_INET6, "redir");
diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c
index fa61208371f8..321a0036fdf5 100644
--- a/net/netfilter/nft_set_rbtree.c
+++ b/net/netfilter/nft_set_rbtree.c
@@ -308,10 +308,6 @@ static void *nft_rbtree_deactivate(const struct net *net,
 		else if (d > 0)
 			parent = parent->rb_right;
 		else {
-			if (!nft_set_elem_active(&rbe->ext, genmask)) {
-				parent = parent->rb_left;
-				continue;
-			}
 			if (nft_rbtree_interval_end(rbe) &&
 			    !nft_rbtree_interval_end(this)) {
 				parent = parent->rb_left;
@@ -320,6 +316,9 @@ static void *nft_rbtree_deactivate(const struct net *net,
 				   nft_rbtree_interval_end(this)) {
 				parent = parent->rb_right;
 				continue;
+			} else if (!nft_set_elem_active(&rbe->ext, genmask)) {
+				parent = parent->rb_left;
+				continue;
 			}
 			nft_rbtree_flush(net, set, rbe);
 			return rbe;
diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c
index c13bcd0ab491..8dbb4d48f2ed 100644
--- a/net/netfilter/xt_time.c
+++ b/net/netfilter/xt_time.c
@@ -163,19 +163,24 @@ time_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	s64 stamp;
 
 	/*
-	 * We cannot use get_seconds() instead of __net_timestamp() here.
+	 * We need real time here, but we can neither use skb->tstamp
+	 * nor __net_timestamp().
+	 *
+	 * skb->tstamp and skb->skb_mstamp_ns overlap, however, they
+	 * use different clock types (real vs monotonic).
+	 *
 	 * Suppose you have two rules:
-	 * 	1. match before 13:00
-	 * 	2. match after 13:00
+	 *	1. match before 13:00
+	 *	2. match after 13:00
+	 *
 	 * If you match against processing time (get_seconds) it
 	 * may happen that the same packet matches both rules if
-	 * it arrived at the right moment before 13:00.
+	 * it arrived at the right moment before 13:00, so it would be
+	 * better to check skb->tstamp and set it via __net_timestamp()
+	 * if needed.  This however breaks outgoing packets tx timestamp,
+	 * and causes them to get delayed forever by fq packet scheduler.
 	 */
-	if (skb->tstamp == 0)
-		__net_timestamp((struct sk_buff *)skb);
-
-	stamp = ktime_to_ns(skb->tstamp);
-	stamp = div_s64(stamp, NSEC_PER_SEC);
+	stamp = get_seconds();
 
 	if (info->flags & XT_TIME_LOCAL_TZ)
 		/* Adjust for local timezone */
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index f28e937320a3..216ab915dd54 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -988,7 +988,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
 	struct netlink_sock *nlk = nlk_sk(sk);
 	struct sockaddr_nl *nladdr = (struct sockaddr_nl *)addr;
 	int err = 0;
-	unsigned long groups = nladdr->nl_groups;
+	unsigned long groups;
 	bool bound;
 
 	if (addr_len < sizeof(struct sockaddr_nl))
@@ -996,6 +996,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr,
 
 	if (nladdr->nl_family != AF_NETLINK)
 		return -EINVAL;
+	groups = nladdr->nl_groups;
 
 	/* Only superuser is allowed to listen multicasts */
 	if (groups) {
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 25eeb6d2a75a..cb69d35c8e6a 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -362,11 +362,11 @@ int genl_register_family(struct genl_family *family)
 	} else
 		family->attrbuf = NULL;
 
-	family->id = idr_alloc(&genl_fam_idr, family,
-			       start, end + 1, GFP_KERNEL);
+	family->id = idr_alloc_cyclic(&genl_fam_idr, family,
+				      start, end + 1, GFP_KERNEL);
 	if (family->id < 0) {
 		err = family->id;
-		goto errout_locked;
+		goto errout_free;
 	}
 
 	err = genl_validate_assign_mc_groups(family);
@@ -385,6 +385,7 @@ int genl_register_family(struct genl_family *family)
 
 errout_remove:
 	idr_remove(&genl_fam_idr, family->id);
+errout_free:
 	kfree(family->attrbuf);
 errout_locked:
 	genl_unlock_all();
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 1d3144d19903..71ffd1a6dc7c 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1392,18 +1392,22 @@ static int __init nr_proto_init(void)
 	int i;
 	int rc = proto_register(&nr_proto, 0);
 
-	if (rc != 0)
-		goto out;
+	if (rc)
+		return rc;
 
 	if (nr_ndevs > 0x7fffffff/sizeof(struct net_device *)) {
-		printk(KERN_ERR "NET/ROM: nr_proto_init - nr_ndevs parameter to large\n");
-		return -1;
+		pr_err("NET/ROM: %s - nr_ndevs parameter too large\n",
+		       __func__);
+		rc = -EINVAL;
+		goto unregister_proto;
 	}
 
 	dev_nr = kcalloc(nr_ndevs, sizeof(struct net_device *), GFP_KERNEL);
-	if (dev_nr == NULL) {
-		printk(KERN_ERR "NET/ROM: nr_proto_init - unable to allocate device array\n");
-		return -1;
+	if (!dev_nr) {
+		pr_err("NET/ROM: %s - unable to allocate device array\n",
+		       __func__);
+		rc = -ENOMEM;
+		goto unregister_proto;
 	}
 
 	for (i = 0; i < nr_ndevs; i++) {
@@ -1413,13 +1417,13 @@ static int __init nr_proto_init(void)
 		sprintf(name, "nr%d", i);
 		dev = alloc_netdev(0, name, NET_NAME_UNKNOWN, nr_setup);
 		if (!dev) {
-			printk(KERN_ERR "NET/ROM: nr_proto_init - unable to allocate device structure\n");
+			rc = -ENOMEM;
 			goto fail;
 		}
 
 		dev->base_addr = i;
-		if (register_netdev(dev)) {
-			printk(KERN_ERR "NET/ROM: nr_proto_init - unable to register network device\n");
+		rc = register_netdev(dev);
+		if (rc) {
 			free_netdev(dev);
 			goto fail;
 		}
@@ -1427,36 +1431,64 @@ static int __init nr_proto_init(void)
 		dev_nr[i] = dev;
 	}
 
-	if (sock_register(&nr_family_ops)) {
-		printk(KERN_ERR "NET/ROM: nr_proto_init - unable to register socket family\n");
+	rc = sock_register(&nr_family_ops);
+	if (rc)
 		goto fail;
-	}
 
-	register_netdevice_notifier(&nr_dev_notifier);
+	rc = register_netdevice_notifier(&nr_dev_notifier);
+	if (rc)
+		goto out_sock;
 
 	ax25_register_pid(&nr_pid);
 	ax25_linkfail_register(&nr_linkfail_notifier);
 
 #ifdef CONFIG_SYSCTL
-	nr_register_sysctl();
+	rc = nr_register_sysctl();
+	if (rc)
+		goto out_sysctl;
 #endif
 
 	nr_loopback_init();
 
-	proc_create_seq("nr", 0444, init_net.proc_net, &nr_info_seqops);
-	proc_create_seq("nr_neigh", 0444, init_net.proc_net, &nr_neigh_seqops);
-	proc_create_seq("nr_nodes", 0444, init_net.proc_net, &nr_node_seqops);
-out:
-	return rc;
+	rc = -ENOMEM;
+	if (!proc_create_seq("nr", 0444, init_net.proc_net, &nr_info_seqops))
+		goto proc_remove1;
+	if (!proc_create_seq("nr_neigh", 0444, init_net.proc_net,
+			     &nr_neigh_seqops))
+		goto proc_remove2;
+	if (!proc_create_seq("nr_nodes", 0444, init_net.proc_net,
+			     &nr_node_seqops))
+		goto proc_remove3;
+
+	return 0;
+
+proc_remove3:
+	remove_proc_entry("nr_neigh", init_net.proc_net);
+proc_remove2:
+	remove_proc_entry("nr", init_net.proc_net);
+proc_remove1:
+
+	nr_loopback_clear();
+	nr_rt_free();
+
+#ifdef CONFIG_SYSCTL
+	nr_unregister_sysctl();
+out_sysctl:
+#endif
+	ax25_linkfail_release(&nr_linkfail_notifier);
+	ax25_protocol_release(AX25_P_NETROM);
+	unregister_netdevice_notifier(&nr_dev_notifier);
+out_sock:
+	sock_unregister(PF_NETROM);
 fail:
 	while (--i >= 0) {
 		unregister_netdev(dev_nr[i]);
 		free_netdev(dev_nr[i]);
 	}
 	kfree(dev_nr);
+unregister_proto:
 	proto_unregister(&nr_proto);
-	rc = -1;
-	goto out;
+	return rc;
 }
 
 module_init(nr_proto_init);
diff --git a/net/netrom/nr_loopback.c b/net/netrom/nr_loopback.c
index 215ad22a9647..93d13f019981 100644
--- a/net/netrom/nr_loopback.c
+++ b/net/netrom/nr_loopback.c
@@ -70,7 +70,7 @@ static void nr_loopback_timer(struct timer_list *unused)
 	}
 }
 
-void __exit nr_loopback_clear(void)
+void nr_loopback_clear(void)
 {
 	del_timer_sync(&loopback_timer);
 	skb_queue_purge(&loopback_queue);
diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index 6485f593e2f0..b76aa668a94b 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -953,7 +953,7 @@ const struct seq_operations nr_neigh_seqops = {
 /*
  *	Free all memory associated with the nodes and routes lists.
  */
-void __exit nr_rt_free(void)
+void nr_rt_free(void)
 {
 	struct nr_neigh *s = NULL;
 	struct nr_node  *t = NULL;
diff --git a/net/netrom/sysctl_net_netrom.c b/net/netrom/sysctl_net_netrom.c
index ba1c368b3f18..771011b84270 100644
--- a/net/netrom/sysctl_net_netrom.c
+++ b/net/netrom/sysctl_net_netrom.c
@@ -146,9 +146,12 @@ static struct ctl_table nr_table[] = {
 	{ }
 };
 
-void __init nr_register_sysctl(void)
+int __init nr_register_sysctl(void)
 {
 	nr_table_header = register_net_sysctl(&init_net, "net/netrom", nr_table);
+	if (!nr_table_header)
+		return -ENOMEM;
+	return 0;
 }
 
 void nr_unregister_sysctl(void)
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index ae296273ce3d..17dcd0b5eb32 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -726,6 +726,10 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
 	llcp_sock->service_name = kmemdup(addr->service_name,
 					  llcp_sock->service_name_len,
 					  GFP_KERNEL);
+	if (!llcp_sock->service_name) {
+		ret = -ENOMEM;
+		goto sock_llcp_release;
+	}
 
 	nfc_llcp_sock_link(&local->connecting_sockets, sk);
 
@@ -745,10 +749,11 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
 	return ret;
 
 sock_unlink:
-	nfc_llcp_put_ssap(local, llcp_sock->ssap);
-
 	nfc_llcp_sock_unlink(&local->connecting_sockets, sk);
 
+sock_llcp_release:
+	nfc_llcp_put_ssap(local, llcp_sock->ssap);
+
 put_dev:
 	nfc_put_device(dev);
 
diff --git a/net/nfc/nci/hci.c b/net/nfc/nci/hci.c
index ddfc52ac1f9b..c0d323b58e73 100644
--- a/net/nfc/nci/hci.c
+++ b/net/nfc/nci/hci.c
@@ -312,6 +312,10 @@ static void nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe,
 		create_info = (struct nci_hci_create_pipe_resp *)skb->data;
 		dest_gate = create_info->dest_gate;
 		new_pipe = create_info->pipe;
+		if (new_pipe >= NCI_HCI_MAX_PIPES) {
+			status = NCI_HCI_ANY_E_NOK;
+			goto exit;
+		}
 
 		/* Save the new created pipe and bind with local gate,
 		 * the description for skb->data[3] is destination gate id
@@ -336,6 +340,10 @@ static void nci_hci_cmd_received(struct nci_dev *ndev, u8 pipe,
 			goto exit;
 		}
 		delete_info = (struct nci_hci_delete_pipe_noti *)skb->data;
+		if (delete_info->pipe >= NCI_HCI_MAX_PIPES) {
+			status = NCI_HCI_ANY_E_NOK;
+			goto exit;
+		}
 
 		ndev->hci_dev->pipes[delete_info->pipe].gate =
 						NCI_HCI_INVALID_GATE;
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 6679e96ab1dc..9dd158ab51b3 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -448,6 +448,10 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 
 	upcall = genlmsg_put(user_skb, 0, 0, &dp_packet_genl_family,
 			     0, upcall_info->cmd);
+	if (!upcall) {
+		err = -EINVAL;
+		goto out;
+	}
 	upcall->dp_ifindex = dp_ifindex;
 
 	err = ovs_nla_put_key(key, key, OVS_PACKET_ATTR_KEY, false, user_skb);
@@ -460,6 +464,10 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 
 	if (upcall_info->egress_tun_info) {
 		nla = nla_nest_start(user_skb, OVS_PACKET_ATTR_EGRESS_TUN_KEY);
+		if (!nla) {
+			err = -EMSGSIZE;
+			goto out;
+		}
 		err = ovs_nla_put_tunnel_info(user_skb,
 					      upcall_info->egress_tun_info);
 		BUG_ON(err);
@@ -468,6 +476,10 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb,
 
 	if (upcall_info->actions_len) {
 		nla = nla_nest_start(user_skb, OVS_PACKET_ATTR_ACTIONS);
+		if (!nla) {
+			err = -EMSGSIZE;
+			goto out;
+		}
 		err = ovs_nla_put_actions(upcall_info->actions,
 					  upcall_info->actions_len,
 					  user_skb);
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index 691da853bef5..4bdf5e3ac208 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -2306,14 +2306,14 @@ static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa,
 
 	struct sw_flow_actions *acts;
 	int new_acts_size;
-	int req_size = NLA_ALIGN(attr_len);
+	size_t req_size = NLA_ALIGN(attr_len);
 	int next_offset = offsetof(struct sw_flow_actions, actions) +
 					(*sfa)->actions_len;
 
 	if (req_size <= (ksize(*sfa) - next_offset))
 		goto out;
 
-	new_acts_size = ksize(*sfa) * 2;
+	new_acts_size = max(next_offset + req_size, ksize(*sfa) * 2);
 
 	if (new_acts_size > MAX_ACTIONS_BUFSIZE) {
 		if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size) {
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 8376bc1c1508..9b81813dd16a 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1852,7 +1852,8 @@ oom:
 
 static void packet_parse_headers(struct sk_buff *skb, struct socket *sock)
 {
-	if (!skb->protocol && sock->type == SOCK_RAW) {
+	if ((!skb->protocol || skb->protocol == htons(ETH_P_ALL)) &&
+	    sock->type == SOCK_RAW) {
 		skb_reset_mac_header(skb);
 		skb->protocol = dev_parse_header_protocol(skb);
 	}
@@ -2601,8 +2602,8 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 	void *ph;
 	DECLARE_SOCKADDR(struct sockaddr_ll *, saddr, msg->msg_name);
 	bool need_wait = !(msg->msg_flags & MSG_DONTWAIT);
+	unsigned char *addr = NULL;
 	int tp_len, size_max;
-	unsigned char *addr;
 	void *data;
 	int len_sum = 0;
 	int status = TP_STATUS_AVAILABLE;
@@ -2613,7 +2614,6 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 	if (likely(saddr == NULL)) {
 		dev	= packet_cached_dev_get(po);
 		proto	= po->num;
-		addr	= NULL;
 	} else {
 		err = -EINVAL;
 		if (msg->msg_namelen < sizeof(struct sockaddr_ll))
@@ -2623,10 +2623,13 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 						sll_addr)))
 			goto out;
 		proto	= saddr->sll_protocol;
-		addr	= saddr->sll_halen ? saddr->sll_addr : NULL;
 		dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex);
-		if (addr && dev && saddr->sll_halen < dev->addr_len)
-			goto out_put;
+		if (po->sk.sk_socket->type == SOCK_DGRAM) {
+			if (dev && msg->msg_namelen < dev->addr_len +
+				   offsetof(struct sockaddr_ll, sll_addr))
+				goto out_put;
+			addr = saddr->sll_addr;
+		}
 	}
 
 	err = -ENXIO;
@@ -2798,7 +2801,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	struct sk_buff *skb;
 	struct net_device *dev;
 	__be16 proto;
-	unsigned char *addr;
+	unsigned char *addr = NULL;
 	int err, reserve = 0;
 	struct sockcm_cookie sockc;
 	struct virtio_net_hdr vnet_hdr = { 0 };
@@ -2815,7 +2818,6 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	if (likely(saddr == NULL)) {
 		dev	= packet_cached_dev_get(po);
 		proto	= po->num;
-		addr	= NULL;
 	} else {
 		err = -EINVAL;
 		if (msg->msg_namelen < sizeof(struct sockaddr_ll))
@@ -2823,10 +2825,13 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 		if (msg->msg_namelen < (saddr->sll_halen + offsetof(struct sockaddr_ll, sll_addr)))
 			goto out;
 		proto	= saddr->sll_protocol;
-		addr	= saddr->sll_halen ? saddr->sll_addr : NULL;
 		dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex);
-		if (addr && dev && saddr->sll_halen < dev->addr_len)
-			goto out_unlock;
+		if (sock->type == SOCK_DGRAM) {
+			if (dev && msg->msg_namelen < dev->addr_len +
+				   offsetof(struct sockaddr_ll, sll_addr))
+				goto out_unlock;
+			addr = saddr->sll_addr;
+		}
 	}
 
 	err = -ENXIO;
@@ -3243,7 +3248,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
 	}
 
 	mutex_lock(&net->packet.sklist_lock);
-	sk_add_node_rcu(sk, &net->packet.sklist);
+	sk_add_node_tail_rcu(sk, &net->packet.sklist);
 	mutex_unlock(&net->packet.sklist_lock);
 
 	preempt_disable();
@@ -3343,20 +3348,29 @@ static int packet_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	sock_recv_ts_and_drops(msg, sk, skb);
 
 	if (msg->msg_name) {
+		int copy_len;
+
 		/* If the address length field is there to be filled
 		 * in, we fill it in now.
 		 */
 		if (sock->type == SOCK_PACKET) {
 			__sockaddr_check_size(sizeof(struct sockaddr_pkt));
 			msg->msg_namelen = sizeof(struct sockaddr_pkt);
+			copy_len = msg->msg_namelen;
 		} else {
 			struct sockaddr_ll *sll = &PACKET_SKB_CB(skb)->sa.ll;
 
 			msg->msg_namelen = sll->sll_halen +
 				offsetof(struct sockaddr_ll, sll_addr);
+			copy_len = msg->msg_namelen;
+			if (msg->msg_namelen < sizeof(struct sockaddr_ll)) {
+				memset(msg->msg_name +
+				       offsetof(struct sockaddr_ll, sll_addr),
+				       0, sizeof(sll->sll_addr));
+				msg->msg_namelen = sizeof(struct sockaddr_ll);
+			}
 		}
-		memcpy(msg->msg_name, &PACKET_SKB_CB(skb)->sa,
-		       msg->msg_namelen);
+		memcpy(msg->msg_name, &PACKET_SKB_CB(skb)->sa, copy_len);
 	}
 
 	if (pkt_sk(sk)->auxdata) {
@@ -4209,7 +4223,7 @@ static struct pgv *alloc_pg_vec(struct tpacket_req *req, int order)
 	struct pgv *pg_vec;
 	int i;
 
-	pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL);
+	pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL | __GFP_NOWARN);
 	if (unlikely(!pg_vec))
 		goto out;
 
diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c
index d6cc97fbbbb0..2b969f99ef13 100644
--- a/net/rds/af_rds.c
+++ b/net/rds/af_rds.c
@@ -543,6 +543,9 @@ static int rds_connect(struct socket *sock, struct sockaddr *uaddr,
 	struct rds_sock *rs = rds_sk_to_rs(sk);
 	int ret = 0;
 
+	if (addr_len < offsetofend(struct sockaddr, sa_family))
+		return -EINVAL;
+
 	lock_sock(sk);
 
 	switch (uaddr->sa_family) {
diff --git a/net/rds/bind.c b/net/rds/bind.c
index 17c9d9f0c848..0f4398e7f2a7 100644
--- a/net/rds/bind.c
+++ b/net/rds/bind.c
@@ -173,6 +173,8 @@ int rds_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	/* We allow an RDS socket to be bound to either IPv4 or IPv6
 	 * address.
 	 */
+	if (addr_len < offsetofend(struct sockaddr, sa_family))
+		return -EINVAL;
 	if (uaddr->sa_family == AF_INET) {
 		struct sockaddr_in *sin = (struct sockaddr_in *)uaddr;
 
diff --git a/net/rds/ib_fmr.c b/net/rds/ib_fmr.c
index 31cf37da4510..93c0437e6a5f 100644
--- a/net/rds/ib_fmr.c
+++ b/net/rds/ib_fmr.c
@@ -44,6 +44,17 @@ struct rds_ib_mr *rds_ib_alloc_fmr(struct rds_ib_device *rds_ibdev, int npages)
 	else
 		pool = rds_ibdev->mr_1m_pool;
 
+	if (atomic_read(&pool->dirty_count) >= pool->max_items / 10)
+		queue_delayed_work(rds_ib_mr_wq, &pool->flush_worker, 10);
+
+	/* Switch pools if one of the pool is reaching upper limit */
+	if (atomic_read(&pool->dirty_count) >=  pool->max_items * 9 / 10) {
+		if (pool->pool_type == RDS_IB_MR_8K_POOL)
+			pool = rds_ibdev->mr_1m_pool;
+		else
+			pool = rds_ibdev->mr_8k_pool;
+	}
+
 	ibmr = rds_ib_try_reuse_ibmr(pool);
 	if (ibmr)
 		return ibmr;
diff --git a/net/rds/ib_rdma.c b/net/rds/ib_rdma.c
index 63c8d107adcf..d664e9ade74d 100644
--- a/net/rds/ib_rdma.c
+++ b/net/rds/ib_rdma.c
@@ -454,9 +454,6 @@ struct rds_ib_mr *rds_ib_try_reuse_ibmr(struct rds_ib_mr_pool *pool)
 	struct rds_ib_mr *ibmr = NULL;
 	int iter = 0;
 
-	if (atomic_read(&pool->dirty_count) >= pool->max_items_soft / 10)
-		queue_delayed_work(rds_ib_mr_wq, &pool->flush_worker, 10);
-
 	while (1) {
 		ibmr = rds_ib_reuse_mr(pool);
 		if (ibmr)
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 70559854837e..8946c89d7392 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -772,7 +772,7 @@ static void rds_ib_cong_recv(struct rds_connection *conn,
 	unsigned long frag_off;
 	unsigned long to_copy;
 	unsigned long copied;
-	uint64_t uncongested = 0;
+	__le64 uncongested = 0;
 	void *addr;
 
 	/* catch completely corrupt packets */
@@ -789,7 +789,7 @@ static void rds_ib_cong_recv(struct rds_connection *conn,
 	copied = 0;
 
 	while (copied < RDS_CONG_MAP_BYTES) {
-		uint64_t *src, *dst;
+		__le64 *src, *dst;
 		unsigned int k;
 
 		to_copy = min(RDS_FRAG_SIZE - frag_off, PAGE_SIZE - map_off);
@@ -824,9 +824,7 @@ static void rds_ib_cong_recv(struct rds_connection *conn,
 	}
 
 	/* the congestion map is in little endian order */
-	uncongested = le64_to_cpu(uncongested);
-
-	rds_cong_map_updated(map, uncongested);
+	rds_cong_map_updated(map, le64_to_cpu(uncongested));
 }
 
 static void rds_ib_process_recv(struct rds_connection *conn,
diff --git a/net/rds/tcp.c b/net/rds/tcp.c
index fd2694174607..faf726e00e27 100644
--- a/net/rds/tcp.c
+++ b/net/rds/tcp.c
@@ -608,7 +608,7 @@ static void rds_tcp_kill_sock(struct net *net)
 	list_for_each_entry_safe(tc, _tc, &rds_tcp_conn_list, t_tcp_node) {
 		struct net *c_net = read_pnet(&tc->t_cpath->cp_conn->c_net);
 
-		if (net != c_net || !tc->t_sock)
+		if (net != c_net)
 			continue;
 		if (!list_has_conn(&tmp_list, tc->t_cpath->cp_conn)) {
 			list_move_tail(&tc->t_tcp_node, &tmp_list);
diff --git a/net/rose/rose_loopback.c b/net/rose/rose_loopback.c
index 7af4f99c4a93..094a6621f8e8 100644
--- a/net/rose/rose_loopback.c
+++ b/net/rose/rose_loopback.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 
 static struct sk_buff_head loopback_queue;
+#define ROSE_LOOPBACK_LIMIT 1000
 static struct timer_list loopback_timer;
 
 static void rose_set_loopback_timer(void);
@@ -35,29 +36,27 @@ static int rose_loopback_running(void)
 
 int rose_loopback_queue(struct sk_buff *skb, struct rose_neigh *neigh)
 {
-	struct sk_buff *skbn;
+	struct sk_buff *skbn = NULL;
 
-	skbn = skb_clone(skb, GFP_ATOMIC);
+	if (skb_queue_len(&loopback_queue) < ROSE_LOOPBACK_LIMIT)
+		skbn = skb_clone(skb, GFP_ATOMIC);
 
-	kfree_skb(skb);
-
-	if (skbn != NULL) {
+	if (skbn) {
+		consume_skb(skb);
 		skb_queue_tail(&loopback_queue, skbn);
 
 		if (!rose_loopback_running())
 			rose_set_loopback_timer();
+	} else {
+		kfree_skb(skb);
 	}
 
 	return 1;
 }
 
-
 static void rose_set_loopback_timer(void)
 {
-	del_timer(&loopback_timer);
-
-	loopback_timer.expires  = jiffies + 10;
-	add_timer(&loopback_timer);
+	mod_timer(&loopback_timer, jiffies + 10);
 }
 
 static void rose_loopback_timer(struct timer_list *unused)
@@ -68,8 +67,12 @@ static void rose_loopback_timer(struct timer_list *unused)
 	struct sock *sk;
 	unsigned short frametype;
 	unsigned int lci_i, lci_o;
+	int count;
 
-	while ((skb = skb_dequeue(&loopback_queue)) != NULL) {
+	for (count = 0; count < ROSE_LOOPBACK_LIMIT; count++) {
+		skb = skb_dequeue(&loopback_queue);
+		if (!skb)
+			return;
 		if (skb->len < ROSE_MIN_LEN) {
 			kfree_skb(skb);
 			continue;
@@ -106,6 +109,8 @@ static void rose_loopback_timer(struct timer_list *unused)
 			kfree_skb(skb);
 		}
 	}
+	if (!skb_queue_empty(&loopback_queue))
+		mod_timer(&loopback_timer, jiffies + 1);
 }
 
 void __exit rose_loopback_clear(void)
diff --git a/net/rose/rose_subr.c b/net/rose/rose_subr.c
index 7ca57741b2fb..7849f286bb93 100644
--- a/net/rose/rose_subr.c
+++ b/net/rose/rose_subr.c
@@ -105,16 +105,17 @@ void rose_write_internal(struct sock *sk, int frametype)
 	struct sk_buff *skb;
 	unsigned char  *dptr;
 	unsigned char  lci1, lci2;
-	char buffer[100];
-	int len, faclen = 0;
+	int maxfaclen = 0;
+	int len, faclen;
+	int reserve;
 
-	len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN + 1;
+	reserve = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1;
+	len = ROSE_MIN_LEN;
 
 	switch (frametype) {
 	case ROSE_CALL_REQUEST:
 		len   += 1 + ROSE_ADDR_LEN + ROSE_ADDR_LEN;
-		faclen = rose_create_facilities(buffer, rose);
-		len   += faclen;
+		maxfaclen = 256;
 		break;
 	case ROSE_CALL_ACCEPTED:
 	case ROSE_CLEAR_REQUEST:
@@ -123,15 +124,16 @@ void rose_write_internal(struct sock *sk, int frametype)
 		break;
 	}
 
-	if ((skb = alloc_skb(len, GFP_ATOMIC)) == NULL)
+	skb = alloc_skb(reserve + len + maxfaclen, GFP_ATOMIC);
+	if (!skb)
 		return;
 
 	/*
 	 *	Space for AX.25 header and PID.
 	 */
-	skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1);
+	skb_reserve(skb, reserve);
 
-	dptr = skb_put(skb, skb_tailroom(skb));
+	dptr = skb_put(skb, len);
 
 	lci1 = (rose->lci >> 8) & 0x0F;
 	lci2 = (rose->lci >> 0) & 0xFF;
@@ -146,7 +148,8 @@ void rose_write_internal(struct sock *sk, int frametype)
 		dptr   += ROSE_ADDR_LEN;
 		memcpy(dptr, &rose->source_addr, ROSE_ADDR_LEN);
 		dptr   += ROSE_ADDR_LEN;
-		memcpy(dptr, buffer, faclen);
+		faclen = rose_create_facilities(dptr, rose);
+		skb_put(skb, faclen);
 		dptr   += faclen;
 		break;
 
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index 96f2952bbdfd..ae8c5d7f3bf1 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -135,7 +135,7 @@ static int rxrpc_bind(struct socket *sock, struct sockaddr *saddr, int len)
 	struct sockaddr_rxrpc *srx = (struct sockaddr_rxrpc *)saddr;
 	struct rxrpc_local *local;
 	struct rxrpc_sock *rx = rxrpc_sk(sock->sk);
-	u16 service_id = srx->srx_service;
+	u16 service_id;
 	int ret;
 
 	_enter("%p,%p,%d", rx, saddr, len);
@@ -143,6 +143,7 @@ static int rxrpc_bind(struct socket *sock, struct sockaddr *saddr, int len)
 	ret = rxrpc_validate_address(rx, srx, len);
 	if (ret < 0)
 		goto error;
+	service_id = srx->srx_service;
 
 	lock_sock(&rx->sk);
 
@@ -370,18 +371,22 @@ EXPORT_SYMBOL(rxrpc_kernel_end_call);
  * rxrpc_kernel_check_life - Check to see whether a call is still alive
  * @sock: The socket the call is on
  * @call: The call to check
+ * @_life: Where to store the life value
  *
  * Allow a kernel service to find out whether a call is still alive - ie. we're
- * getting ACKs from the server.  Returns a number representing the life state
- * which can be compared to that returned by a previous call.
+ * getting ACKs from the server.  Passes back in *_life a number representing
+ * the life state which can be compared to that returned by a previous call and
+ * return true if the call is still alive.
  *
  * If the life state stalls, rxrpc_kernel_probe_life() should be called and
  * then 2RTT waited.
  */
-u32 rxrpc_kernel_check_life(const struct socket *sock,
-			    const struct rxrpc_call *call)
+bool rxrpc_kernel_check_life(const struct socket *sock,
+			     const struct rxrpc_call *call,
+			     u32 *_life)
 {
-	return call->acks_latest;
+	*_life = call->acks_latest;
+	return call->state != RXRPC_CALL_COMPLETE;
 }
 EXPORT_SYMBOL(rxrpc_kernel_check_life);
 
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index 4b1a534d290a..062ca9dc29b8 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -654,6 +654,7 @@ struct rxrpc_call {
 	u8			ackr_reason;	/* reason to ACK */
 	u16			ackr_skew;	/* skew on packet being ACK'd */
 	rxrpc_serial_t		ackr_serial;	/* serial of packet being ACK'd */
+	rxrpc_serial_t		ackr_first_seq;	/* first sequence number received */
 	rxrpc_seq_t		ackr_prev_seq;	/* previous sequence number received */
 	rxrpc_seq_t		ackr_consumed;	/* Highest packet shown consumed */
 	rxrpc_seq_t		ackr_seen;	/* Highest packet shown seen */
diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 8aa2937b069f..fe96881a334d 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -604,30 +604,30 @@ void rxrpc_destroy_all_calls(struct rxrpc_net *rxnet)
 
 	_enter("");
 
-	if (list_empty(&rxnet->calls))
-		return;
+	if (!list_empty(&rxnet->calls)) {
+		write_lock(&rxnet->call_lock);
 
-	write_lock(&rxnet->call_lock);
+		while (!list_empty(&rxnet->calls)) {
+			call = list_entry(rxnet->calls.next,
+					  struct rxrpc_call, link);
+			_debug("Zapping call %p", call);
 
-	while (!list_empty(&rxnet->calls)) {
-		call = list_entry(rxnet->calls.next, struct rxrpc_call, link);
-		_debug("Zapping call %p", call);
+			rxrpc_see_call(call);
+			list_del_init(&call->link);
 
-		rxrpc_see_call(call);
-		list_del_init(&call->link);
+			pr_err("Call %p still in use (%d,%s,%lx,%lx)!\n",
+			       call, atomic_read(&call->usage),
+			       rxrpc_call_states[call->state],
+			       call->flags, call->events);
 
-		pr_err("Call %p still in use (%d,%s,%lx,%lx)!\n",
-		       call, atomic_read(&call->usage),
-		       rxrpc_call_states[call->state],
-		       call->flags, call->events);
+			write_unlock(&rxnet->call_lock);
+			cond_resched();
+			write_lock(&rxnet->call_lock);
+		}
 
 		write_unlock(&rxnet->call_lock);
-		cond_resched();
-		write_lock(&rxnet->call_lock);
 	}
 
-	write_unlock(&rxnet->call_lock);
-
 	atomic_dec(&rxnet->nr_calls);
 	wait_var_event(&rxnet->nr_calls, !atomic_read(&rxnet->nr_calls));
 }
diff --git a/net/rxrpc/conn_event.c b/net/rxrpc/conn_event.c
index b6fca8ebb117..8d31fb4c51e1 100644
--- a/net/rxrpc/conn_event.c
+++ b/net/rxrpc/conn_event.c
@@ -153,7 +153,8 @@ static void rxrpc_conn_retransmit_call(struct rxrpc_connection *conn,
  * pass a connection-level abort onto all calls on that connection
  */
 static void rxrpc_abort_calls(struct rxrpc_connection *conn,
-			      enum rxrpc_call_completion compl)
+			      enum rxrpc_call_completion compl,
+			      rxrpc_serial_t serial)
 {
 	struct rxrpc_call *call;
 	int i;
@@ -173,6 +174,9 @@ static void rxrpc_abort_calls(struct rxrpc_connection *conn,
 						  call->call_id, 0,
 						  conn->abort_code,
 						  conn->error);
+			else
+				trace_rxrpc_rx_abort(call, serial,
+						     conn->abort_code);
 			if (rxrpc_set_call_completion(call, compl,
 						      conn->abort_code,
 						      conn->error))
@@ -213,8 +217,6 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
 	conn->state = RXRPC_CONN_LOCALLY_ABORTED;
 	spin_unlock_bh(&conn->state_lock);
 
-	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED);
-
 	msg.msg_name	= &conn->params.peer->srx.transport;
 	msg.msg_namelen	= conn->params.peer->srx.transport_len;
 	msg.msg_control	= NULL;
@@ -242,6 +244,7 @@ static int rxrpc_abort_connection(struct rxrpc_connection *conn,
 	len = iov[0].iov_len + iov[1].iov_len;
 
 	serial = atomic_inc_return(&conn->serial);
+	rxrpc_abort_calls(conn, RXRPC_CALL_LOCALLY_ABORTED, serial);
 	whdr.serial = htonl(serial);
 	_proto("Tx CONN ABORT %%%u { %d }", serial, conn->abort_code);
 
@@ -321,7 +324,7 @@ static int rxrpc_process_event(struct rxrpc_connection *conn,
 		conn->error = -ECONNABORTED;
 		conn->abort_code = abort_code;
 		conn->state = RXRPC_CONN_REMOTELY_ABORTED;
-		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED);
+		rxrpc_abort_calls(conn, RXRPC_CALL_REMOTELY_ABORTED, sp->hdr.serial);
 		return -ECONNABORTED;
 
 	case RXRPC_PACKET_TYPE_CHALLENGE:
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index 9128aa0e40aa..c2c35cf4e308 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -837,7 +837,7 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb,
 		u8 acks[RXRPC_MAXACKS];
 	} buf;
 	rxrpc_serial_t acked_serial;
-	rxrpc_seq_t first_soft_ack, hard_ack;
+	rxrpc_seq_t first_soft_ack, hard_ack, prev_pkt;
 	int nr_acks, offset, ioffset;
 
 	_enter("");
@@ -851,13 +851,14 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb,
 
 	acked_serial = ntohl(buf.ack.serial);
 	first_soft_ack = ntohl(buf.ack.firstPacket);
+	prev_pkt = ntohl(buf.ack.previousPacket);
 	hard_ack = first_soft_ack - 1;
 	nr_acks = buf.ack.nAcks;
 	summary.ack_reason = (buf.ack.reason < RXRPC_ACK__INVALID ?
 			      buf.ack.reason : RXRPC_ACK__INVALID);
 
 	trace_rxrpc_rx_ack(call, sp->hdr.serial, acked_serial,
-			   first_soft_ack, ntohl(buf.ack.previousPacket),
+			   first_soft_ack, prev_pkt,
 			   summary.ack_reason, nr_acks);
 
 	if (buf.ack.reason == RXRPC_ACK_PING_RESPONSE)
@@ -878,8 +879,9 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb,
 				  rxrpc_propose_ack_respond_to_ack);
 	}
 
-	/* Discard any out-of-order or duplicate ACKs. */
-	if (before_eq(sp->hdr.serial, call->acks_latest))
+	/* Discard any out-of-order or duplicate ACKs (outside lock). */
+	if (before(first_soft_ack, call->ackr_first_seq) ||
+	    before(prev_pkt, call->ackr_prev_seq))
 		return;
 
 	buf.info.rxMTU = 0;
@@ -890,12 +892,16 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb,
 
 	spin_lock(&call->input_lock);
 
-	/* Discard any out-of-order or duplicate ACKs. */
-	if (before_eq(sp->hdr.serial, call->acks_latest))
+	/* Discard any out-of-order or duplicate ACKs (inside lock). */
+	if (before(first_soft_ack, call->ackr_first_seq) ||
+	    before(prev_pkt, call->ackr_prev_seq))
 		goto out;
 	call->acks_latest_ts = skb->tstamp;
 	call->acks_latest = sp->hdr.serial;
 
+	call->ackr_first_seq = first_soft_ack;
+	call->ackr_prev_seq = prev_pkt;
+
 	/* Parse rwind and mtu sizes if provided. */
 	if (buf.info.rxMTU)
 		rxrpc_input_ackinfo(call, skb, &buf.info);
@@ -1155,19 +1161,19 @@ int rxrpc_extract_header(struct rxrpc_skb_priv *sp, struct sk_buff *skb)
  * handle data received on the local endpoint
  * - may be called in interrupt context
  *
- * The socket is locked by the caller and this prevents the socket from being
- * shut down and the local endpoint from going away, thus sk_user_data will not
- * be cleared until this function returns.
+ * [!] Note that as this is called from the encap_rcv hook, the socket is not
+ * held locked by the caller and nothing prevents sk_user_data on the UDP from
+ * being cleared in the middle of processing this function.
  *
  * Called with the RCU read lock held from the IP layer via UDP.
  */
 int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb)
 {
+	struct rxrpc_local *local = rcu_dereference_sk_user_data(udp_sk);
 	struct rxrpc_connection *conn;
 	struct rxrpc_channel *chan;
 	struct rxrpc_call *call = NULL;
 	struct rxrpc_skb_priv *sp;
-	struct rxrpc_local *local = udp_sk->sk_user_data;
 	struct rxrpc_peer *peer = NULL;
 	struct rxrpc_sock *rx = NULL;
 	unsigned int channel;
@@ -1175,6 +1181,10 @@ int rxrpc_input_packet(struct sock *udp_sk, struct sk_buff *skb)
 
 	_enter("%p", udp_sk);
 
+	if (unlikely(!local)) {
+		kfree_skb(skb);
+		return 0;
+	}
 	if (skb->tstamp == 0)
 		skb->tstamp = ktime_get_real();
 
diff --git a/net/rxrpc/local_object.c b/net/rxrpc/local_object.c
index 15cf42d5b53a..01959db51445 100644
--- a/net/rxrpc/local_object.c
+++ b/net/rxrpc/local_object.c
@@ -304,7 +304,8 @@ nomem:
 	ret = -ENOMEM;
 sock_error:
 	mutex_unlock(&rxnet->local_mutex);
-	kfree(local);
+	if (local)
+		call_rcu(&local->rcu, rxrpc_local_rcu);
 	_leave(" = %d", ret);
 	return ERR_PTR(ret);
 
diff --git a/net/rxrpc/output.c b/net/rxrpc/output.c
index 736aa9281100..004c762c2e8d 100644
--- a/net/rxrpc/output.c
+++ b/net/rxrpc/output.c
@@ -335,7 +335,6 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
 	struct kvec iov[2];
 	rxrpc_serial_t serial;
 	size_t len;
-	bool lost = false;
 	int ret, opt;
 
 	_enter(",{%d}", skb->len);
@@ -393,14 +392,14 @@ int rxrpc_send_data_packet(struct rxrpc_call *call, struct sk_buff *skb,
 		static int lose;
 		if ((lose++ & 7) == 7) {
 			ret = 0;
-			lost = true;
+			trace_rxrpc_tx_data(call, sp->hdr.seq, serial,
+					    whdr.flags, retrans, true);
+			goto done;
 		}
 	}
 
-	trace_rxrpc_tx_data(call, sp->hdr.seq, serial, whdr.flags,
-			    retrans, lost);
-	if (lost)
-		goto done;
+	trace_rxrpc_tx_data(call, sp->hdr.seq, serial, whdr.flags, retrans,
+			    false);
 
 	/* send the packet with the don't fragment bit set if we currently
 	 * think it's small enough */
diff --git a/net/rxrpc/peer_event.c b/net/rxrpc/peer_event.c
index bc05af89fc38..6e84d878053c 100644
--- a/net/rxrpc/peer_event.c
+++ b/net/rxrpc/peer_event.c
@@ -157,6 +157,11 @@ void rxrpc_error_report(struct sock *sk)
 
 	_enter("%p{%d}", sk, local->debug_id);
 
+	/* Clear the outstanding error value on the socket so that it doesn't
+	 * cause kernel_sendmsg() to return it later.
+	 */
+	sock_error(sk);
+
 	skb = sock_dequeue_err_skb(sk);
 	if (!skb) {
 		_leave("UDP socket errqueue empty");
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index 46c9312085b1..bec64deb7b0a 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -152,12 +152,13 @@ static void rxrpc_notify_end_tx(struct rxrpc_sock *rx, struct rxrpc_call *call,
 }
 
 /*
- * Queue a DATA packet for transmission, set the resend timeout and send the
- * packet immediately
+ * Queue a DATA packet for transmission, set the resend timeout and send
+ * the packet immediately.  Returns the error from rxrpc_send_data_packet()
+ * in case the caller wants to do something with it.
  */
-static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
-			       struct sk_buff *skb, bool last,
-			       rxrpc_notify_end_tx_t notify_end_tx)
+static int rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
+			      struct sk_buff *skb, bool last,
+			      rxrpc_notify_end_tx_t notify_end_tx)
 {
 	struct rxrpc_skb_priv *sp = rxrpc_skb(skb);
 	unsigned long now;
@@ -250,7 +251,8 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, struct rxrpc_call *call,
 
 out:
 	rxrpc_free_skb(skb, rxrpc_skb_tx_freed);
-	_leave("");
+	_leave(" = %d", ret);
+	return ret;
 }
 
 /*
@@ -423,9 +425,10 @@ static int rxrpc_send_data(struct rxrpc_sock *rx,
 			if (ret < 0)
 				goto out;
 
-			rxrpc_queue_packet(rx, call, skb,
-					   !msg_data_left(msg) && !more,
-					   notify_end_tx);
+			ret = rxrpc_queue_packet(rx, call, skb,
+						 !msg_data_left(msg) && !more,
+						 notify_end_tx);
+			/* Should check for failure here */
 			skb = NULL;
 		}
 	} while (msg_data_left(msg) > 0);
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index 1b9afdee5ba9..5c02ad97ef23 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -358,8 +358,7 @@ config NET_SCH_PIE
 	help
 	  Say Y here if you want to use the Proportional Integral controller
 	  Enhanced scheduler packet scheduling algorithm.
-	  For more information, please see
-	  http://tools.ietf.org/html/draft-pan-tsvwg-pie-00
+	  For more information, please see https://tools.ietf.org/html/rfc8033
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called sch_pie.
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index aecf1bf233c8..5a87e271d35a 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -28,27 +28,10 @@
 #include <net/act_api.h>
 #include <net/netlink.h>
 
-static int tcf_action_goto_chain_init(struct tc_action *a, struct tcf_proto *tp)
-{
-	u32 chain_index = a->tcfa_action & TC_ACT_EXT_VAL_MASK;
-
-	if (!tp)
-		return -EINVAL;
-	a->goto_chain = tcf_chain_get_by_act(tp->chain->block, chain_index);
-	if (!a->goto_chain)
-		return -ENOMEM;
-	return 0;
-}
-
-static void tcf_action_goto_chain_fini(struct tc_action *a)
-{
-	tcf_chain_put_by_act(a->goto_chain);
-}
-
 static void tcf_action_goto_chain_exec(const struct tc_action *a,
 				       struct tcf_result *res)
 {
-	const struct tcf_chain *chain = a->goto_chain;
+	const struct tcf_chain *chain = rcu_dereference_bh(a->goto_chain);
 
 	res->goto_tp = rcu_dereference_bh(chain->filter_chain);
 }
@@ -71,6 +54,51 @@ static void tcf_set_action_cookie(struct tc_cookie __rcu **old_cookie,
 		call_rcu(&old->rcu, tcf_free_cookie_rcu);
 }
 
+int tcf_action_check_ctrlact(int action, struct tcf_proto *tp,
+			     struct tcf_chain **newchain,
+			     struct netlink_ext_ack *extack)
+{
+	int opcode = TC_ACT_EXT_OPCODE(action), ret = -EINVAL;
+	u32 chain_index;
+
+	if (!opcode)
+		ret = action > TC_ACT_VALUE_MAX ? -EINVAL : 0;
+	else if (opcode <= TC_ACT_EXT_OPCODE_MAX || action == TC_ACT_UNSPEC)
+		ret = 0;
+	if (ret) {
+		NL_SET_ERR_MSG(extack, "invalid control action");
+		goto end;
+	}
+
+	if (TC_ACT_EXT_CMP(action, TC_ACT_GOTO_CHAIN)) {
+		chain_index = action & TC_ACT_EXT_VAL_MASK;
+		if (!tp || !newchain) {
+			ret = -EINVAL;
+			NL_SET_ERR_MSG(extack,
+				       "can't goto NULL proto/chain");
+			goto end;
+		}
+		*newchain = tcf_chain_get_by_act(tp->chain->block, chain_index);
+		if (!*newchain) {
+			ret = -ENOMEM;
+			NL_SET_ERR_MSG(extack,
+				       "can't allocate goto_chain");
+		}
+	}
+end:
+	return ret;
+}
+EXPORT_SYMBOL(tcf_action_check_ctrlact);
+
+struct tcf_chain *tcf_action_set_ctrlact(struct tc_action *a, int action,
+					 struct tcf_chain *goto_chain)
+{
+	a->tcfa_action = action;
+	rcu_swap_protected(a->goto_chain, goto_chain, 1);
+	return goto_chain;
+}
+EXPORT_SYMBOL(tcf_action_set_ctrlact);
+
 /* XXX: For standalone actions, we don't need a RCU grace period either, because
  * actions are always connected to filters and filters are already destroyed in
  * RCU callbacks, so after a RCU grace period actions are already disconnected
@@ -78,13 +106,15 @@ static void tcf_set_action_cookie(struct tc_cookie __rcu **old_cookie,
  */
 static void free_tcf(struct tc_action *p)
 {
+	struct tcf_chain *chain = rcu_dereference_protected(p->goto_chain, 1);
+
 	free_percpu(p->cpu_bstats);
 	free_percpu(p->cpu_bstats_hw);
 	free_percpu(p->cpu_qstats);
 
 	tcf_set_action_cookie(&p->act_cookie, NULL);
-	if (p->goto_chain)
-		tcf_action_goto_chain_fini(p);
+	if (chain)
+		tcf_chain_put_by_act(chain);
 
 	kfree(p);
 }
@@ -654,6 +684,10 @@ repeat:
 					return TC_ACT_OK;
 			}
 		} else if (TC_ACT_EXT_CMP(ret, TC_ACT_GOTO_CHAIN)) {
+			if (unlikely(!rcu_access_pointer(a->goto_chain))) {
+				net_warn_ratelimited("can't go to NULL chain!\n");
+				return TC_ACT_SHOT;
+			}
 			tcf_action_goto_chain_exec(a, res);
 		}
 
@@ -800,15 +834,6 @@ static struct tc_cookie *nla_memdup_cookie(struct nlattr **tb)
 	return c;
 }
 
-static bool tcf_action_valid(int action)
-{
-	int opcode = TC_ACT_EXT_OPCODE(action);
-
-	if (!opcode)
-		return action <= TC_ACT_VALUE_MAX;
-	return opcode <= TC_ACT_EXT_OPCODE_MAX || action == TC_ACT_UNSPEC;
-}
-
 struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 				    struct nlattr *nla, struct nlattr *est,
 				    char *name, int ovr, int bind,
@@ -890,10 +915,10 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 	/* backward compatibility for policer */
 	if (name == NULL)
 		err = a_o->init(net, tb[TCA_ACT_OPTIONS], est, &a, ovr, bind,
-				rtnl_held, extack);
+				rtnl_held, tp, extack);
 	else
 		err = a_o->init(net, nla, est, &a, ovr, bind, rtnl_held,
-				extack);
+				tp, extack);
 	if (err < 0)
 		goto err_mod;
 
@@ -907,18 +932,10 @@ struct tc_action *tcf_action_init_1(struct net *net, struct tcf_proto *tp,
 	if (err != ACT_P_CREATED)
 		module_put(a_o->owner);
 
-	if (TC_ACT_EXT_CMP(a->tcfa_action, TC_ACT_GOTO_CHAIN)) {
-		err = tcf_action_goto_chain_init(a, tp);
-		if (err) {
-			tcf_action_destroy_1(a, bind);
-			NL_SET_ERR_MSG(extack, "Failed to init TC action chain");
-			return ERR_PTR(err);
-		}
-	}
-
-	if (!tcf_action_valid(a->tcfa_action)) {
+	if (TC_ACT_EXT_CMP(a->tcfa_action, TC_ACT_GOTO_CHAIN) &&
+	    !rcu_access_pointer(a->goto_chain)) {
 		tcf_action_destroy_1(a, bind);
-		NL_SET_ERR_MSG(extack, "Invalid control action value");
+		NL_SET_ERR_MSG(extack, "can't use goto chain with NULL chain");
 		return ERR_PTR(-EINVAL);
 	}
 
diff --git a/net/sched/act_bpf.c b/net/sched/act_bpf.c
index aa5c38d11a30..3841156aa09f 100644
--- a/net/sched/act_bpf.c
+++ b/net/sched/act_bpf.c
@@ -17,6 +17,7 @@
 
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_bpf.h>
 #include <net/tc_act/tc_bpf.h>
@@ -278,10 +279,11 @@ static void tcf_bpf_prog_fill_cfg(const struct tcf_bpf *prog,
 static int tcf_bpf_init(struct net *net, struct nlattr *nla,
 			struct nlattr *est, struct tc_action **act,
 			int replace, int bind, bool rtnl_held,
-			struct netlink_ext_ack *extack)
+			struct tcf_proto *tp, struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, bpf_net_id);
 	struct nlattr *tb[TCA_ACT_BPF_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tcf_bpf_cfg cfg, old;
 	struct tc_act_bpf *parm;
 	struct tcf_bpf *prog;
@@ -323,12 +325,16 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
 		return ret;
 	}
 
+	ret = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (ret < 0)
+		goto release_idr;
+
 	is_bpf = tb[TCA_ACT_BPF_OPS_LEN] && tb[TCA_ACT_BPF_OPS];
 	is_ebpf = tb[TCA_ACT_BPF_FD];
 
 	if ((!is_bpf && !is_ebpf) || (is_bpf && is_ebpf)) {
 		ret = -EINVAL;
-		goto out;
+		goto put_chain;
 	}
 
 	memset(&cfg, 0, sizeof(cfg));
@@ -336,7 +342,7 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
 	ret = is_bpf ? tcf_bpf_init_from_ops(tb, &cfg) :
 		       tcf_bpf_init_from_efd(tb, &cfg);
 	if (ret < 0)
-		goto out;
+		goto put_chain;
 
 	prog = to_bpf(*act);
 
@@ -350,10 +356,13 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
 	if (cfg.bpf_num_ops)
 		prog->bpf_num_ops = cfg.bpf_num_ops;
 
-	prog->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*act, parm->action, goto_ch);
 	rcu_assign_pointer(prog->filter, cfg.filter);
 	spin_unlock_bh(&prog->tcf_lock);
 
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+
 	if (res == ACT_P_CREATED) {
 		tcf_idr_insert(tn, *act);
 	} else {
@@ -363,9 +372,13 @@ static int tcf_bpf_init(struct net *net, struct nlattr *nla,
 	}
 
 	return res;
-out:
-	tcf_idr_release(*act, bind);
 
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+
+release_idr:
+	tcf_idr_release(*act, bind);
 	return ret;
 }
 
diff --git a/net/sched/act_connmark.c b/net/sched/act_connmark.c
index 5d24993cccfe..32ae0cd6e31c 100644
--- a/net/sched/act_connmark.c
+++ b/net/sched/act_connmark.c
@@ -21,6 +21,7 @@
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
 #include <net/act_api.h>
+#include <net/pkt_cls.h>
 #include <uapi/linux/tc_act/tc_connmark.h>
 #include <net/tc_act/tc_connmark.h>
 
@@ -97,13 +98,15 @@ static const struct nla_policy connmark_policy[TCA_CONNMARK_MAX + 1] = {
 static int tcf_connmark_init(struct net *net, struct nlattr *nla,
 			     struct nlattr *est, struct tc_action **a,
 			     int ovr, int bind, bool rtnl_held,
+			     struct tcf_proto *tp,
 			     struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, connmark_net_id);
 	struct nlattr *tb[TCA_CONNMARK_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tcf_connmark_info *ci;
 	struct tc_connmark *parm;
-	int ret = 0;
+	int ret = 0, err;
 
 	if (!nla)
 		return -EINVAL;
@@ -128,7 +131,11 @@ static int tcf_connmark_init(struct net *net, struct nlattr *nla,
 		}
 
 		ci = to_connmark(*a);
-		ci->tcf_action = parm->action;
+		err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch,
+					       extack);
+		if (err < 0)
+			goto release_idr;
+		tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 		ci->net = net;
 		ci->zone = parm->zone;
 
@@ -142,15 +149,24 @@ static int tcf_connmark_init(struct net *net, struct nlattr *nla,
 			tcf_idr_release(*a, bind);
 			return -EEXIST;
 		}
+		err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch,
+					       extack);
+		if (err < 0)
+			goto release_idr;
 		/* replacing action and zone */
 		spin_lock_bh(&ci->tcf_lock);
-		ci->tcf_action = parm->action;
+		goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 		ci->zone = parm->zone;
 		spin_unlock_bh(&ci->tcf_lock);
+		if (goto_ch)
+			tcf_chain_put_by_act(goto_ch);
 		ret = 0;
 	}
 
 	return ret;
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static inline int tcf_connmark_dump(struct sk_buff *skb, struct tc_action *a,
diff --git a/net/sched/act_csum.c b/net/sched/act_csum.c
index c79aca29505e..0c77e7bdf6d5 100644
--- a/net/sched/act_csum.c
+++ b/net/sched/act_csum.c
@@ -33,6 +33,7 @@
 #include <net/sctp/checksum.h>
 
 #include <net/act_api.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_csum.h>
 #include <net/tc_act/tc_csum.h>
@@ -46,12 +47,13 @@ static struct tc_action_ops act_csum_ops;
 
 static int tcf_csum_init(struct net *net, struct nlattr *nla,
 			 struct nlattr *est, struct tc_action **a, int ovr,
-			 int bind, bool rtnl_held,
+			 int bind, bool rtnl_held, struct tcf_proto *tp,
 			 struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, csum_net_id);
 	struct tcf_csum_params *params_new;
 	struct nlattr *tb[TCA_CSUM_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_csum *parm;
 	struct tcf_csum *p;
 	int ret = 0, err;
@@ -87,21 +89,27 @@ static int tcf_csum_init(struct net *net, struct nlattr *nla,
 		return err;
 	}
 
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
+
 	p = to_tcf_csum(*a);
 
 	params_new = kzalloc(sizeof(*params_new), GFP_KERNEL);
 	if (unlikely(!params_new)) {
-		tcf_idr_release(*a, bind);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto put_chain;
 	}
 	params_new->update_flags = parm->update_flags;
 
 	spin_lock_bh(&p->tcf_lock);
-	p->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	rcu_swap_protected(p->params, params_new,
 			   lockdep_is_held(&p->tcf_lock));
 	spin_unlock_bh(&p->tcf_lock);
 
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 	if (params_new)
 		kfree_rcu(params_new, rcu);
 
@@ -109,6 +117,12 @@ static int tcf_csum_init(struct net *net, struct nlattr *nla,
 		tcf_idr_insert(tn, *a);
 
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 /**
diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c
index 93da0004e9f4..e540e31069d7 100644
--- a/net/sched/act_gact.c
+++ b/net/sched/act_gact.c
@@ -20,6 +20,7 @@
 #include <linux/init.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
 #include <linux/tc_act/tc_gact.h>
 #include <net/tc_act/tc_gact.h>
 
@@ -57,10 +58,11 @@ static const struct nla_policy gact_policy[TCA_GACT_MAX + 1] = {
 static int tcf_gact_init(struct net *net, struct nlattr *nla,
 			 struct nlattr *est, struct tc_action **a,
 			 int ovr, int bind, bool rtnl_held,
-			 struct netlink_ext_ack *extack)
+			 struct tcf_proto *tp, struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, gact_net_id);
 	struct nlattr *tb[TCA_GACT_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_gact *parm;
 	struct tcf_gact *gact;
 	int ret = 0;
@@ -116,10 +118,13 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
 		return err;
 	}
 
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 	gact = to_gact(*a);
 
 	spin_lock_bh(&gact->tcf_lock);
-	gact->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 #ifdef CONFIG_GACT_PROB
 	if (p_parm) {
 		gact->tcfg_paction = p_parm->paction;
@@ -133,9 +138,15 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla,
 #endif
 	spin_unlock_bh(&gact->tcf_lock);
 
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static int tcf_gact_act(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_ife.c b/net/sched/act_ife.c
index 9b1f2b3990ee..31c6ffb6abe7 100644
--- a/net/sched/act_ife.c
+++ b/net/sched/act_ife.c
@@ -29,6 +29,7 @@
 #include <net/net_namespace.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
 #include <uapi/linux/tc_act/tc_ife.h>
 #include <net/tc_act/tc_ife.h>
 #include <linux/etherdevice.h>
@@ -469,11 +470,12 @@ static int populate_metalist(struct tcf_ife_info *ife, struct nlattr **tb,
 static int tcf_ife_init(struct net *net, struct nlattr *nla,
 			struct nlattr *est, struct tc_action **a,
 			int ovr, int bind, bool rtnl_held,
-			struct netlink_ext_ack *extack)
+			struct tcf_proto *tp, struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, ife_net_id);
 	struct nlattr *tb[TCA_IFE_MAX + 1];
 	struct nlattr *tb2[IFE_META_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tcf_ife_params *p;
 	struct tcf_ife_info *ife;
 	u16 ife_type = ETH_P_IFE;
@@ -531,6 +533,10 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
 	}
 
 	ife = to_ife(*a);
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
+
 	p->flags = parm->flags;
 
 	if (parm->flags & IFE_ENCODE) {
@@ -563,13 +569,8 @@ static int tcf_ife_init(struct net *net, struct nlattr *nla,
 	if (tb[TCA_IFE_METALST]) {
 		err = nla_parse_nested(tb2, IFE_META_MAX, tb[TCA_IFE_METALST],
 				       NULL, NULL);
-		if (err) {
-metadata_parse_err:
-			tcf_idr_release(*a, bind);
-			kfree(p);
-			return err;
-		}
-
+		if (err)
+			goto metadata_parse_err;
 		err = populate_metalist(ife, tb2, exists, rtnl_held);
 		if (err)
 			goto metadata_parse_err;
@@ -581,21 +582,20 @@ metadata_parse_err:
 		 * going to bail out
 		 */
 		err = use_all_metadata(ife, exists);
-		if (err) {
-			tcf_idr_release(*a, bind);
-			kfree(p);
-			return err;
-		}
+		if (err)
+			goto metadata_parse_err;
 	}
 
 	if (exists)
 		spin_lock_bh(&ife->tcf_lock);
-	ife->tcf_action = parm->action;
 	/* protected by tcf_lock when modifying existing action */
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	rcu_swap_protected(ife->params, p, 1);
 
 	if (exists)
 		spin_unlock_bh(&ife->tcf_lock);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 	if (p)
 		kfree_rcu(p, rcu);
 
@@ -603,6 +603,13 @@ metadata_parse_err:
 		tcf_idr_insert(tn, *a);
 
 	return ret;
+metadata_parse_err:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	kfree(p);
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static int tcf_ife_dump(struct sk_buff *skb, struct tc_action *a, int bind,
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 98f5b6ea77b4..04a0b5c61194 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -97,7 +97,8 @@ static const struct nla_policy ipt_policy[TCA_IPT_MAX + 1] = {
 
 static int __tcf_ipt_init(struct net *net, unsigned int id, struct nlattr *nla,
 			  struct nlattr *est, struct tc_action **a,
-			  const struct tc_action_ops *ops, int ovr, int bind)
+			  const struct tc_action_ops *ops, int ovr, int bind,
+			  struct tcf_proto *tp)
 {
 	struct tc_action_net *tn = net_generic(net, id);
 	struct nlattr *tb[TCA_IPT_MAX + 1];
@@ -205,20 +206,20 @@ err1:
 
 static int tcf_ipt_init(struct net *net, struct nlattr *nla,
 			struct nlattr *est, struct tc_action **a, int ovr,
-			int bind, bool rtnl_held,
+			int bind, bool rtnl_held, struct tcf_proto *tp,
 			struct netlink_ext_ack *extack)
 {
 	return __tcf_ipt_init(net, ipt_net_id, nla, est, a, &act_ipt_ops, ovr,
-			      bind);
+			      bind, tp);
 }
 
 static int tcf_xt_init(struct net *net, struct nlattr *nla,
 		       struct nlattr *est, struct tc_action **a, int ovr,
-		       int bind, bool unlocked,
+		       int bind, bool unlocked, struct tcf_proto *tp,
 		       struct netlink_ext_ack *extack)
 {
 	return __tcf_ipt_init(net, xt_net_id, nla, est, a, &act_xt_ops, ovr,
-			      bind);
+			      bind, tp);
 }
 
 static int tcf_ipt_act(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_mirred.c b/net/sched/act_mirred.c
index 6692fd054617..17cc6bd4c57c 100644
--- a/net/sched/act_mirred.c
+++ b/net/sched/act_mirred.c
@@ -94,10 +94,12 @@ static struct tc_action_ops act_mirred_ops;
 static int tcf_mirred_init(struct net *net, struct nlattr *nla,
 			   struct nlattr *est, struct tc_action **a,
 			   int ovr, int bind, bool rtnl_held,
+			   struct tcf_proto *tp,
 			   struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, mirred_net_id);
 	struct nlattr *tb[TCA_MIRRED_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	bool mac_header_xmit = false;
 	struct tc_mirred *parm;
 	struct tcf_mirred *m;
@@ -157,18 +159,23 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
 		tcf_idr_release(*a, bind);
 		return -EEXIST;
 	}
+
 	m = to_mirred(*a);
+	if (ret == ACT_P_CREATED)
+		INIT_LIST_HEAD(&m->tcfm_list);
+
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 
 	spin_lock_bh(&m->tcf_lock);
-	m->tcf_action = parm->action;
-	m->tcfm_eaction = parm->eaction;
 
 	if (parm->ifindex) {
 		dev = dev_get_by_index(net, parm->ifindex);
 		if (!dev) {
 			spin_unlock_bh(&m->tcf_lock);
-			tcf_idr_release(*a, bind);
-			return -ENODEV;
+			err = -ENODEV;
+			goto put_chain;
 		}
 		mac_header_xmit = dev_is_mac_header_xmit(dev);
 		rcu_swap_protected(m->tcfm_dev, dev,
@@ -177,7 +184,11 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
 			dev_put(dev);
 		m->tcfm_mac_header_xmit = mac_header_xmit;
 	}
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
+	m->tcfm_eaction = parm->eaction;
 	spin_unlock_bh(&m->tcf_lock);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 
 	if (ret == ACT_P_CREATED) {
 		spin_lock(&mirred_list_lock);
@@ -188,6 +199,12 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
 	}
 
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static int tcf_mirred_act(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_nat.c b/net/sched/act_nat.c
index 543eab9193f1..e91bb8eb81ec 100644
--- a/net/sched/act_nat.c
+++ b/net/sched/act_nat.c
@@ -21,6 +21,7 @@
 #include <linux/string.h>
 #include <linux/tc_act/tc_nat.h>
 #include <net/act_api.h>
+#include <net/pkt_cls.h>
 #include <net/icmp.h>
 #include <net/ip.h>
 #include <net/netlink.h>
@@ -38,10 +39,12 @@ static const struct nla_policy nat_policy[TCA_NAT_MAX + 1] = {
 
 static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
 			struct tc_action **a, int ovr, int bind,
-			bool rtnl_held, struct netlink_ext_ack *extack)
+			bool rtnl_held,	struct tcf_proto *tp,
+			struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, nat_net_id);
 	struct nlattr *tb[TCA_NAT_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_nat *parm;
 	int ret = 0, err;
 	struct tcf_nat *p;
@@ -76,6 +79,9 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
 	} else {
 		return err;
 	}
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 	p = to_tcf_nat(*a);
 
 	spin_lock_bh(&p->tcf_lock);
@@ -84,13 +90,18 @@ static int tcf_nat_init(struct net *net, struct nlattr *nla, struct nlattr *est,
 	p->mask = parm->mask;
 	p->flags = parm->flags;
 
-	p->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	spin_unlock_bh(&p->tcf_lock);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 
 	return ret;
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static int tcf_nat_act(struct sk_buff *skb, const struct tc_action *a,
diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index a80373878df7..287793abfaf9 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -23,6 +23,7 @@
 #include <linux/tc_act/tc_pedit.h>
 #include <net/tc_act/tc_pedit.h>
 #include <uapi/linux/tc_act/tc_pedit.h>
+#include <net/pkt_cls.h>
 
 static unsigned int pedit_net_id;
 static struct tc_action_ops act_pedit_ops;
@@ -138,10 +139,11 @@ nla_failure:
 static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 			  struct nlattr *est, struct tc_action **a,
 			  int ovr, int bind, bool rtnl_held,
-			  struct netlink_ext_ack *extack)
+			  struct tcf_proto *tp, struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, pedit_net_id);
 	struct nlattr *tb[TCA_PEDIT_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_pedit_key *keys = NULL;
 	struct tcf_pedit_key_ex *keys_ex;
 	struct tc_pedit *parm;
@@ -205,6 +207,11 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 		goto out_free;
 	}
 
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0) {
+		ret = err;
+		goto out_release;
+	}
 	p = to_pedit(*a);
 	spin_lock_bh(&p->tcf_lock);
 
@@ -214,7 +221,7 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 		if (!keys) {
 			spin_unlock_bh(&p->tcf_lock);
 			ret = -ENOMEM;
-			goto out_release;
+			goto put_chain;
 		}
 		kfree(p->tcfp_keys);
 		p->tcfp_keys = keys;
@@ -223,16 +230,21 @@ static int tcf_pedit_init(struct net *net, struct nlattr *nla,
 	memcpy(p->tcfp_keys, parm->keys, ksize);
 
 	p->tcfp_flags = parm->flags;
-	p->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 
 	kfree(p->tcfp_keys_ex);
 	p->tcfp_keys_ex = keys_ex;
 
 	spin_unlock_bh(&p->tcf_lock);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
 
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 out_release:
 	tcf_idr_release(*a, bind);
 out_free:
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 8271a6263824..2b8581f6ab51 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -21,6 +21,7 @@
 #include <linux/slab.h>
 #include <net/act_api.h>
 #include <net/netlink.h>
+#include <net/pkt_cls.h>
 
 struct tcf_police_params {
 	int			tcfp_result;
@@ -83,10 +84,12 @@ static const struct nla_policy police_policy[TCA_POLICE_MAX + 1] = {
 static int tcf_police_init(struct net *net, struct nlattr *nla,
 			       struct nlattr *est, struct tc_action **a,
 			       int ovr, int bind, bool rtnl_held,
+			       struct tcf_proto *tp,
 			       struct netlink_ext_ack *extack)
 {
 	int ret = 0, tcfp_result = TC_ACT_OK, err, size;
 	struct nlattr *tb[TCA_POLICE_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_police *parm;
 	struct tcf_police *police;
 	struct qdisc_rate_table *R_tab = NULL, *P_tab = NULL;
@@ -128,6 +131,9 @@ static int tcf_police_init(struct net *net, struct nlattr *nla,
 		tcf_idr_release(*a, bind);
 		return -EEXIST;
 	}
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 
 	police = to_police(*a);
 	if (parm->rate.rate) {
@@ -213,12 +219,14 @@ static int tcf_police_init(struct net *net, struct nlattr *nla,
 	if (new->peak_present)
 		police->tcfp_ptoks = new->tcfp_mtu_ptoks;
 	spin_unlock_bh(&police->tcfp_lock);
-	police->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	rcu_swap_protected(police->params,
 			   new,
 			   lockdep_is_held(&police->tcf_lock));
 	spin_unlock_bh(&police->tcf_lock);
 
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 	if (new)
 		kfree_rcu(new, rcu);
 
@@ -229,6 +237,9 @@ static int tcf_police_init(struct net *net, struct nlattr *nla,
 failure:
 	qdisc_put_rtab(P_tab);
 	qdisc_put_rtab(R_tab);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
 	tcf_idr_release(*a, bind);
 	return err;
 }
diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c
index 203e399e5c85..0f82d50ea232 100644
--- a/net/sched/act_sample.c
+++ b/net/sched/act_sample.c
@@ -22,6 +22,7 @@
 #include <linux/tc_act/tc_sample.h>
 #include <net/tc_act/tc_sample.h>
 #include <net/psample.h>
+#include <net/pkt_cls.h>
 
 #include <linux/if_arp.h>
 
@@ -37,14 +38,15 @@ static const struct nla_policy sample_policy[TCA_SAMPLE_MAX + 1] = {
 
 static int tcf_sample_init(struct net *net, struct nlattr *nla,
 			   struct nlattr *est, struct tc_action **a, int ovr,
-			   int bind, bool rtnl_held,
+			   int bind, bool rtnl_held, struct tcf_proto *tp,
 			   struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, sample_net_id);
 	struct nlattr *tb[TCA_SAMPLE_MAX + 1];
 	struct psample_group *psample_group;
+	struct tcf_chain *goto_ch = NULL;
+	u32 psample_group_num, rate;
 	struct tc_sample *parm;
-	u32 psample_group_num;
 	struct tcf_sample *s;
 	bool exists = false;
 	int ret, err;
@@ -79,19 +81,28 @@ static int tcf_sample_init(struct net *net, struct nlattr *nla,
 		tcf_idr_release(*a, bind);
 		return -EEXIST;
 	}
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 
+	rate = nla_get_u32(tb[TCA_SAMPLE_RATE]);
+	if (!rate) {
+		NL_SET_ERR_MSG(extack, "invalid sample rate");
+		err = -EINVAL;
+		goto put_chain;
+	}
 	psample_group_num = nla_get_u32(tb[TCA_SAMPLE_PSAMPLE_GROUP]);
 	psample_group = psample_group_get(net, psample_group_num);
 	if (!psample_group) {
-		tcf_idr_release(*a, bind);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto put_chain;
 	}
 
 	s = to_sample(*a);
 
 	spin_lock_bh(&s->tcf_lock);
-	s->tcf_action = parm->action;
-	s->rate = nla_get_u32(tb[TCA_SAMPLE_RATE]);
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
+	s->rate = rate;
 	s->psample_group_num = psample_group_num;
 	RCU_INIT_POINTER(s->psample_group, psample_group);
 
@@ -100,10 +111,18 @@ static int tcf_sample_init(struct net *net, struct nlattr *nla,
 		s->trunc_size = nla_get_u32(tb[TCA_SAMPLE_TRUNC_SIZE]);
 	}
 	spin_unlock_bh(&s->tcf_lock);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static void tcf_sample_cleanup(struct tc_action *a)
diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
index d54cb608dbaf..23c8ca5615e5 100644
--- a/net/sched/act_simple.c
+++ b/net/sched/act_simple.c
@@ -18,6 +18,7 @@
 #include <linux/rtnetlink.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_defact.h>
 #include <net/tc_act/tc_defact.h>
@@ -60,14 +61,26 @@ static int alloc_defdata(struct tcf_defact *d, const struct nlattr *defdata)
 	return 0;
 }
 
-static void reset_policy(struct tcf_defact *d, const struct nlattr *defdata,
-			 struct tc_defact *p)
+static int reset_policy(struct tc_action *a, const struct nlattr *defdata,
+			struct tc_defact *p, struct tcf_proto *tp,
+			struct netlink_ext_ack *extack)
 {
+	struct tcf_chain *goto_ch = NULL;
+	struct tcf_defact *d;
+	int err;
+
+	err = tcf_action_check_ctrlact(p->action, tp, &goto_ch, extack);
+	if (err < 0)
+		return err;
+	d = to_defact(a);
 	spin_lock_bh(&d->tcf_lock);
-	d->tcf_action = p->action;
+	goto_ch = tcf_action_set_ctrlact(a, p->action, goto_ch);
 	memset(d->tcfd_defdata, 0, SIMP_MAX_DATA);
 	nla_strlcpy(d->tcfd_defdata, defdata, SIMP_MAX_DATA);
 	spin_unlock_bh(&d->tcf_lock);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+	return 0;
 }
 
 static const struct nla_policy simple_policy[TCA_DEF_MAX + 1] = {
@@ -78,10 +91,11 @@ static const struct nla_policy simple_policy[TCA_DEF_MAX + 1] = {
 static int tcf_simp_init(struct net *net, struct nlattr *nla,
 			 struct nlattr *est, struct tc_action **a,
 			 int ovr, int bind, bool rtnl_held,
-			 struct netlink_ext_ack *extack)
+			 struct tcf_proto *tp, struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, simp_net_id);
 	struct nlattr *tb[TCA_DEF_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_defact *parm;
 	struct tcf_defact *d;
 	bool exists = false;
@@ -122,27 +136,37 @@ static int tcf_simp_init(struct net *net, struct nlattr *nla,
 		}
 
 		d = to_defact(*a);
-		ret = alloc_defdata(d, tb[TCA_DEF_DATA]);
-		if (ret < 0) {
-			tcf_idr_release(*a, bind);
-			return ret;
-		}
-		d->tcf_action = parm->action;
+		err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch,
+					       extack);
+		if (err < 0)
+			goto release_idr;
+
+		err = alloc_defdata(d, tb[TCA_DEF_DATA]);
+		if (err < 0)
+			goto put_chain;
+
+		tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 		ret = ACT_P_CREATED;
 	} else {
-		d = to_defact(*a);
-
 		if (!ovr) {
-			tcf_idr_release(*a, bind);
-			return -EEXIST;
+			err = -EEXIST;
+			goto release_idr;
 		}
 
-		reset_policy(d, tb[TCA_DEF_DATA], parm);
+		err = reset_policy(*a, tb[TCA_DEF_DATA], parm, tp, extack);
+		if (err)
+			goto release_idr;
 	}
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static int tcf_simp_dump(struct sk_buff *skb, struct tc_action *a,
diff --git a/net/sched/act_skbedit.c b/net/sched/act_skbedit.c
index 65879500b688..7e1d261a31d2 100644
--- a/net/sched/act_skbedit.c
+++ b/net/sched/act_skbedit.c
@@ -26,6 +26,7 @@
 #include <net/ip.h>
 #include <net/ipv6.h>
 #include <net/dsfield.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_skbedit.h>
 #include <net/tc_act/tc_skbedit.h>
@@ -96,11 +97,13 @@ static const struct nla_policy skbedit_policy[TCA_SKBEDIT_MAX + 1] = {
 static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
 			    struct nlattr *est, struct tc_action **a,
 			    int ovr, int bind, bool rtnl_held,
+			    struct tcf_proto *tp,
 			    struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, skbedit_net_id);
 	struct tcf_skbedit_params *params_new;
 	struct nlattr *tb[TCA_SKBEDIT_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_skbedit *parm;
 	struct tcf_skbedit *d;
 	u32 flags = 0, *priority = NULL, *mark = NULL, *mask = NULL;
@@ -186,11 +189,14 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
 			return -EEXIST;
 		}
 	}
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 
 	params_new = kzalloc(sizeof(*params_new), GFP_KERNEL);
 	if (unlikely(!params_new)) {
-		tcf_idr_release(*a, bind);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto put_chain;
 	}
 
 	params_new->flags = flags;
@@ -208,16 +214,24 @@ static int tcf_skbedit_init(struct net *net, struct nlattr *nla,
 		params_new->mask = *mask;
 
 	spin_lock_bh(&d->tcf_lock);
-	d->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	rcu_swap_protected(d->params, params_new,
 			   lockdep_is_held(&d->tcf_lock));
 	spin_unlock_bh(&d->tcf_lock);
 	if (params_new)
 		kfree_rcu(params_new, rcu);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static int tcf_skbedit_dump(struct sk_buff *skb, struct tc_action *a,
diff --git a/net/sched/act_skbmod.c b/net/sched/act_skbmod.c
index 7bac1d78e7a3..1d4c324d0a42 100644
--- a/net/sched/act_skbmod.c
+++ b/net/sched/act_skbmod.c
@@ -16,6 +16,7 @@
 #include <linux/rtnetlink.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_skbmod.h>
 #include <net/tc_act/tc_skbmod.h>
@@ -82,11 +83,13 @@ static const struct nla_policy skbmod_policy[TCA_SKBMOD_MAX + 1] = {
 static int tcf_skbmod_init(struct net *net, struct nlattr *nla,
 			   struct nlattr *est, struct tc_action **a,
 			   int ovr, int bind, bool rtnl_held,
+			   struct tcf_proto *tp,
 			   struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, skbmod_net_id);
 	struct nlattr *tb[TCA_SKBMOD_MAX + 1];
 	struct tcf_skbmod_params *p, *p_old;
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_skbmod *parm;
 	struct tcf_skbmod *d;
 	bool exists = false;
@@ -153,21 +156,24 @@ static int tcf_skbmod_init(struct net *net, struct nlattr *nla,
 		tcf_idr_release(*a, bind);
 		return -EEXIST;
 	}
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
 
 	d = to_skbmod(*a);
 
 	p = kzalloc(sizeof(struct tcf_skbmod_params), GFP_KERNEL);
 	if (unlikely(!p)) {
-		tcf_idr_release(*a, bind);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto put_chain;
 	}
 
 	p->flags = lflags;
-	d->tcf_action = parm->action;
 
 	if (ovr)
 		spin_lock_bh(&d->tcf_lock);
 	/* Protected by tcf_lock if overwriting existing action. */
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	p_old = rcu_dereference_protected(d->skbmod_p, 1);
 
 	if (lflags & SKBMOD_F_DMAC)
@@ -183,10 +189,18 @@ static int tcf_skbmod_init(struct net *net, struct nlattr *nla,
 
 	if (p_old)
 		kfree_rcu(p_old, rcu);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static void tcf_skbmod_cleanup(struct tc_action *a)
diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c
index 7c6591b991d5..d5aaf90a3971 100644
--- a/net/sched/act_tunnel_key.c
+++ b/net/sched/act_tunnel_key.c
@@ -17,6 +17,7 @@
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
 #include <net/dst.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_tunnel_key.h>
 #include <net/tc_act/tc_tunnel_key.h>
@@ -210,12 +211,14 @@ static void tunnel_key_release_params(struct tcf_tunnel_key_params *p)
 static int tunnel_key_init(struct net *net, struct nlattr *nla,
 			   struct nlattr *est, struct tc_action **a,
 			   int ovr, int bind, bool rtnl_held,
+			   struct tcf_proto *tp,
 			   struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, tunnel_key_net_id);
 	struct nlattr *tb[TCA_TUNNEL_KEY_MAX + 1];
 	struct tcf_tunnel_key_params *params_new;
 	struct metadata_dst *metadata = NULL;
+	struct tcf_chain *goto_ch = NULL;
 	struct tc_tunnel_key *parm;
 	struct tcf_tunnel_key *t;
 	bool exists = false;
@@ -359,6 +362,12 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
 		goto release_tun_meta;
 	}
 
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0) {
+		ret = err;
+		exists = true;
+		goto release_tun_meta;
+	}
 	t = to_tunnel_key(*a);
 
 	params_new = kzalloc(sizeof(*params_new), GFP_KERNEL);
@@ -366,23 +375,29 @@ static int tunnel_key_init(struct net *net, struct nlattr *nla,
 		NL_SET_ERR_MSG(extack, "Cannot allocate tunnel key parameters");
 		ret = -ENOMEM;
 		exists = true;
-		goto release_tun_meta;
+		goto put_chain;
 	}
 	params_new->tcft_action = parm->t_action;
 	params_new->tcft_enc_metadata = metadata;
 
 	spin_lock_bh(&t->tcf_lock);
-	t->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	rcu_swap_protected(t->params, params_new,
 			   lockdep_is_held(&t->tcf_lock));
 	spin_unlock_bh(&t->tcf_lock);
 	tunnel_key_release_params(params_new);
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 
 	return ret;
 
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+
 release_tun_meta:
 	if (metadata)
 		dst_release(&metadata->dst);
diff --git a/net/sched/act_vlan.c b/net/sched/act_vlan.c
index ac0061599225..0f40d0a74423 100644
--- a/net/sched/act_vlan.c
+++ b/net/sched/act_vlan.c
@@ -15,6 +15,7 @@
 #include <linux/if_vlan.h>
 #include <net/netlink.h>
 #include <net/pkt_sched.h>
+#include <net/pkt_cls.h>
 
 #include <linux/tc_act/tc_vlan.h>
 #include <net/tc_act/tc_vlan.h>
@@ -105,10 +106,11 @@ static const struct nla_policy vlan_policy[TCA_VLAN_MAX + 1] = {
 static int tcf_vlan_init(struct net *net, struct nlattr *nla,
 			 struct nlattr *est, struct tc_action **a,
 			 int ovr, int bind, bool rtnl_held,
-			 struct netlink_ext_ack *extack)
+			 struct tcf_proto *tp, struct netlink_ext_ack *extack)
 {
 	struct tc_action_net *tn = net_generic(net, vlan_net_id);
 	struct nlattr *tb[TCA_VLAN_MAX + 1];
+	struct tcf_chain *goto_ch = NULL;
 	struct tcf_vlan_params *p;
 	struct tc_vlan *parm;
 	struct tcf_vlan *v;
@@ -200,12 +202,16 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
 		return -EEXIST;
 	}
 
+	err = tcf_action_check_ctrlact(parm->action, tp, &goto_ch, extack);
+	if (err < 0)
+		goto release_idr;
+
 	v = to_vlan(*a);
 
 	p = kzalloc(sizeof(*p), GFP_KERNEL);
 	if (!p) {
-		tcf_idr_release(*a, bind);
-		return -ENOMEM;
+		err = -ENOMEM;
+		goto put_chain;
 	}
 
 	p->tcfv_action = action;
@@ -214,16 +220,24 @@ static int tcf_vlan_init(struct net *net, struct nlattr *nla,
 	p->tcfv_push_proto = push_proto;
 
 	spin_lock_bh(&v->tcf_lock);
-	v->tcf_action = parm->action;
+	goto_ch = tcf_action_set_ctrlact(*a, parm->action, goto_ch);
 	rcu_swap_protected(v->vlan_p, p, lockdep_is_held(&v->tcf_lock));
 	spin_unlock_bh(&v->tcf_lock);
 
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
 	if (p)
 		kfree_rcu(p, rcu);
 
 	if (ret == ACT_P_CREATED)
 		tcf_idr_insert(tn, *a);
 	return ret;
+put_chain:
+	if (goto_ch)
+		tcf_chain_put_by_act(goto_ch);
+release_idr:
+	tcf_idr_release(*a, bind);
+	return err;
 }
 
 static void tcf_vlan_cleanup(struct tc_action *a)
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index dc10525e90e7..99ae30c177c7 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -367,7 +367,7 @@ static void tcf_chain_destroy(struct tcf_chain *chain, bool free_block)
 	struct tcf_block *block = chain->block;
 
 	mutex_destroy(&chain->filter_chain_lock);
-	kfree(chain);
+	kfree_rcu(chain, rcu);
 	if (free_block)
 		tcf_block_destroy(block);
 }
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 459921bd3d87..a13bc351a414 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -130,6 +130,11 @@ static void mall_destroy(struct tcf_proto *tp, bool rtnl_held,
 
 static void *mall_get(struct tcf_proto *tp, u32 handle)
 {
+	struct cls_mall_head *head = rtnl_dereference(tp->root);
+
+	if (head && head->handle == handle)
+		return head;
+
 	return NULL;
 }
 
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index 1d2a12132abc..259d97bc2abd 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -211,6 +211,9 @@ struct cake_sched_data {
 	u8		ack_filter;
 	u8		atm_mode;
 
+	u32		fwmark_mask;
+	u16		fwmark_shft;
+
 	/* time_next = time_this + ((len * rate_ns) >> rate_shft) */
 	u16		rate_shft;
 	ktime_t		time_next_packet;
@@ -258,8 +261,7 @@ enum {
 	CAKE_FLAG_AUTORATE_INGRESS = BIT(1),
 	CAKE_FLAG_INGRESS	   = BIT(2),
 	CAKE_FLAG_WASH		   = BIT(3),
-	CAKE_FLAG_SPLIT_GSO	   = BIT(4),
-	CAKE_FLAG_FWMARK	   = BIT(5)
+	CAKE_FLAG_SPLIT_GSO	   = BIT(4)
 };
 
 /* COBALT operates the Codel and BLUE algorithms in parallel, in order to
@@ -1515,16 +1517,27 @@ static unsigned int cake_drop(struct Qdisc *sch, struct sk_buff **to_free)
 
 static u8 cake_handle_diffserv(struct sk_buff *skb, u16 wash)
 {
+	int wlen = skb_network_offset(skb);
 	u8 dscp;
 
-	switch (skb->protocol) {
+	switch (tc_skb_protocol(skb)) {
 	case htons(ETH_P_IP):
+		wlen += sizeof(struct iphdr);
+		if (!pskb_may_pull(skb, wlen) ||
+		    skb_try_make_writable(skb, wlen))
+			return 0;
+
 		dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
 		if (wash && dscp)
 			ipv4_change_dsfield(ip_hdr(skb), INET_ECN_MASK, 0);
 		return dscp;
 
 	case htons(ETH_P_IPV6):
+		wlen += sizeof(struct ipv6hdr);
+		if (!pskb_may_pull(skb, wlen) ||
+		    skb_try_make_writable(skb, wlen))
+			return 0;
+
 		dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> 2;
 		if (wash && dscp)
 			ipv6_change_dsfield(ipv6_hdr(skb), INET_ECN_MASK, 0);
@@ -1543,7 +1556,7 @@ static struct cake_tin_data *cake_select_tin(struct Qdisc *sch,
 					     struct sk_buff *skb)
 {
 	struct cake_sched_data *q = qdisc_priv(sch);
-	u32 tin;
+	u32 tin, mark;
 	u8 dscp;
 
 	/* Tin selection: Default to diffserv-based selection, allow overriding
@@ -1551,14 +1564,13 @@ static struct cake_tin_data *cake_select_tin(struct Qdisc *sch,
 	 */
 	dscp = cake_handle_diffserv(skb,
 				    q->rate_flags & CAKE_FLAG_WASH);
+	mark = (skb->mark & q->fwmark_mask) >> q->fwmark_shft;
 
 	if (q->tin_mode == CAKE_DIFFSERV_BESTEFFORT)
 		tin = 0;
 
-	else if (q->rate_flags & CAKE_FLAG_FWMARK && /* use fw mark */
-		 skb->mark &&
-		 skb->mark <= q->tin_cnt)
-		tin = q->tin_order[skb->mark - 1];
+	else if (mark && mark <= q->tin_cnt)
+		tin = q->tin_order[mark - 1];
 
 	else if (TC_H_MAJ(skb->priority) == sch->handle &&
 		 TC_H_MIN(skb->priority) > 0 &&
@@ -2172,6 +2184,7 @@ static const struct nla_policy cake_policy[TCA_CAKE_MAX + 1] = {
 	[TCA_CAKE_MPU]		 = { .type = NLA_U32 },
 	[TCA_CAKE_INGRESS]	 = { .type = NLA_U32 },
 	[TCA_CAKE_ACK_FILTER]	 = { .type = NLA_U32 },
+	[TCA_CAKE_FWMARK]	 = { .type = NLA_U32 },
 };
 
 static void cake_set_rate(struct cake_tin_data *b, u64 rate, u32 mtu,
@@ -2619,10 +2632,8 @@ static int cake_change(struct Qdisc *sch, struct nlattr *opt,
 	}
 
 	if (tb[TCA_CAKE_FWMARK]) {
-		if (!!nla_get_u32(tb[TCA_CAKE_FWMARK]))
-			q->rate_flags |= CAKE_FLAG_FWMARK;
-		else
-			q->rate_flags &= ~CAKE_FLAG_FWMARK;
+		q->fwmark_mask = nla_get_u32(tb[TCA_CAKE_FWMARK]);
+		q->fwmark_shft = q->fwmark_mask ? __ffs(q->fwmark_mask) : 0;
 	}
 
 	if (q->tins) {
@@ -2784,8 +2795,7 @@ static int cake_dump(struct Qdisc *sch, struct sk_buff *skb)
 			!!(q->rate_flags & CAKE_FLAG_SPLIT_GSO)))
 		goto nla_put_failure;
 
-	if (nla_put_u32(skb, TCA_CAKE_FWMARK,
-			!!(q->rate_flags & CAKE_FLAG_FWMARK)))
+	if (nla_put_u32(skb, TCA_CAKE_FWMARK, q->fwmark_mask))
 		goto nla_put_failure;
 
 	return nla_nest_end(skb, opts);
diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index 4dc05409e3fb..114b9048ea7e 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -1358,9 +1358,11 @@ cbq_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 {
 	struct cbq_sched_data *q = qdisc_priv(sch);
 	struct cbq_class *cl = (struct cbq_class *)arg;
+	__u32 qlen;
 
 	cl->xstats.avgidle = cl->avgidle;
 	cl->xstats.undertime = 0;
+	qdisc_qstats_qlen_backlog(cl->q, &qlen, &cl->qstats.backlog);
 
 	if (cl->undertime != PSCHED_PASTPERFECT)
 		cl->xstats.undertime = cl->undertime - q->now;
@@ -1368,7 +1370,7 @@ cbq_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch),
 				  d, NULL, &cl->bstats) < 0 ||
 	    gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &cl->qstats, cl->q->q.qlen) < 0)
+	    gnet_stats_copy_queue(d, NULL, &cl->qstats, qlen) < 0)
 		return -1;
 
 	return gnet_stats_copy_app(d, &cl->xstats, sizeof(cl->xstats));
@@ -1665,17 +1667,13 @@ static int cbq_delete(struct Qdisc *sch, unsigned long arg)
 {
 	struct cbq_sched_data *q = qdisc_priv(sch);
 	struct cbq_class *cl = (struct cbq_class *)arg;
-	unsigned int qlen, backlog;
 
 	if (cl->filters || cl->children || cl == &q->link)
 		return -EBUSY;
 
 	sch_tree_lock(sch);
 
-	qlen = cl->q->q.qlen;
-	backlog = cl->q->qstats.backlog;
-	qdisc_reset(cl->q);
-	qdisc_tree_reduce_backlog(cl->q, qlen, backlog);
+	qdisc_purge_queue(cl->q);
 
 	if (cl->next_alive)
 		cbq_deactivate_class(cl);
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index 09b800991065..430df9a55ec4 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -50,15 +50,6 @@ static struct drr_class *drr_find_class(struct Qdisc *sch, u32 classid)
 	return container_of(clc, struct drr_class, common);
 }
 
-static void drr_purge_queue(struct drr_class *cl)
-{
-	unsigned int len = cl->qdisc->q.qlen;
-	unsigned int backlog = cl->qdisc->qstats.backlog;
-
-	qdisc_reset(cl->qdisc);
-	qdisc_tree_reduce_backlog(cl->qdisc, len, backlog);
-}
-
 static const struct nla_policy drr_policy[TCA_DRR_MAX + 1] = {
 	[TCA_DRR_QUANTUM]	= { .type = NLA_U32 },
 };
@@ -167,7 +158,7 @@ static int drr_delete_class(struct Qdisc *sch, unsigned long arg)
 
 	sch_tree_lock(sch);
 
-	drr_purge_queue(cl);
+	qdisc_purge_queue(cl->qdisc);
 	qdisc_class_hash_remove(&q->clhash, &cl->common);
 
 	sch_tree_unlock(sch);
@@ -269,7 +260,8 @@ static int drr_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 				struct gnet_dump *d)
 {
 	struct drr_class *cl = (struct drr_class *)arg;
-	__u32 qlen = cl->qdisc->q.qlen;
+	__u32 qlen = qdisc_qlen_sum(cl->qdisc);
+	struct Qdisc *cl_q = cl->qdisc;
 	struct tc_drr_stats xstats;
 
 	memset(&xstats, 0, sizeof(xstats));
@@ -279,7 +271,7 @@ static int drr_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch),
 				  d, NULL, &cl->bstats) < 0 ||
 	    gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &cl->qdisc->qstats, qlen) < 0)
+	    gnet_stats_copy_queue(d, cl_q->cpu_qstats, &cl_q->qstats, qlen) < 0)
 		return -1;
 
 	return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index 24cc220a3218..d2ab463f22ae 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -845,16 +845,6 @@ qdisc_peek_len(struct Qdisc *sch)
 }
 
 static void
-hfsc_purge_queue(struct Qdisc *sch, struct hfsc_class *cl)
-{
-	unsigned int len = cl->qdisc->q.qlen;
-	unsigned int backlog = cl->qdisc->qstats.backlog;
-
-	qdisc_reset(cl->qdisc);
-	qdisc_tree_reduce_backlog(cl->qdisc, len, backlog);
-}
-
-static void
 hfsc_adjust_levels(struct hfsc_class *cl)
 {
 	struct hfsc_class *p;
@@ -1076,7 +1066,7 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 	qdisc_class_hash_insert(&q->clhash, &cl->cl_common);
 	list_add_tail(&cl->siblings, &parent->children);
 	if (parent->level == 0)
-		hfsc_purge_queue(sch, parent);
+		qdisc_purge_queue(parent->qdisc);
 	hfsc_adjust_levels(parent);
 	sch_tree_unlock(sch);
 
@@ -1112,7 +1102,7 @@ hfsc_delete_class(struct Qdisc *sch, unsigned long arg)
 	list_del(&cl->siblings);
 	hfsc_adjust_levels(cl->cl_parent);
 
-	hfsc_purge_queue(sch, cl);
+	qdisc_purge_queue(cl->qdisc);
 	qdisc_class_hash_remove(&q->clhash, &cl->cl_common);
 
 	sch_tree_unlock(sch);
@@ -1328,8 +1318,9 @@ hfsc_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 {
 	struct hfsc_class *cl = (struct hfsc_class *)arg;
 	struct tc_hfsc_stats xstats;
+	__u32 qlen;
 
-	cl->qstats.backlog = cl->qdisc->qstats.backlog;
+	qdisc_qstats_qlen_backlog(cl->qdisc, &qlen, &cl->qstats.backlog);
 	xstats.level   = cl->level;
 	xstats.period  = cl->cl_vtperiod;
 	xstats.work    = cl->cl_total;
@@ -1337,7 +1328,7 @@ hfsc_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 
 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch), d, NULL, &cl->bstats) < 0 ||
 	    gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &cl->qstats, cl->qdisc->q.qlen) < 0)
+	    gnet_stats_copy_queue(d, NULL, &cl->qstats, qlen) < 0)
 		return -1;
 
 	return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 30f9da7e1076..2f9883b196e8 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1127,10 +1127,9 @@ htb_dump_class_stats(struct Qdisc *sch, unsigned long arg, struct gnet_dump *d)
 	};
 	__u32 qlen = 0;
 
-	if (!cl->level && cl->leaf.q) {
-		qlen = cl->leaf.q->q.qlen;
-		qs.backlog = cl->leaf.q->qstats.backlog;
-	}
+	if (!cl->level && cl->leaf.q)
+		qdisc_qstats_qlen_backlog(cl->leaf.q, &qlen, &qs.backlog);
+
 	cl->xstats.tokens = clamp_t(s64, PSCHED_NS2TICKS(cl->tokens),
 				    INT_MIN, INT_MAX);
 	cl->xstats.ctokens = clamp_t(s64, PSCHED_NS2TICKS(cl->ctokens),
@@ -1270,13 +1269,8 @@ static int htb_delete(struct Qdisc *sch, unsigned long arg)
 
 	sch_tree_lock(sch);
 
-	if (!cl->level) {
-		unsigned int qlen = cl->leaf.q->q.qlen;
-		unsigned int backlog = cl->leaf.q->qstats.backlog;
-
-		qdisc_reset(cl->leaf.q);
-		qdisc_tree_reduce_backlog(cl->leaf.q, qlen, backlog);
-	}
+	if (!cl->level)
+		qdisc_purge_queue(cl->leaf.q);
 
 	/* delete from hash and active; remainder in destroy_class */
 	qdisc_class_hash_remove(&q->clhash, &cl->common);
@@ -1404,12 +1398,8 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 					  classid, NULL);
 		sch_tree_lock(sch);
 		if (parent && !parent->level) {
-			unsigned int qlen = parent->leaf.q->q.qlen;
-			unsigned int backlog = parent->leaf.q->qstats.backlog;
-
 			/* turn parent into inner node */
-			qdisc_reset(parent->leaf.q);
-			qdisc_tree_reduce_backlog(parent->leaf.q, qlen, backlog);
+			qdisc_purge_queue(parent->leaf.q);
 			qdisc_put(parent->leaf.q);
 			if (parent->prio_activity)
 				htb_deactivate(q, parent);
diff --git a/net/sched/sch_mq.c b/net/sched/sch_mq.c
index 203659bc3906..3a3312467692 100644
--- a/net/sched/sch_mq.c
+++ b/net/sched/sch_mq.c
@@ -249,7 +249,7 @@ static int mq_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 
 	sch = dev_queue->qdisc_sleeping;
 	if (gnet_stats_copy_basic(&sch->running, d, NULL, &sch->bstats) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &sch->qstats, sch->q.qlen) < 0)
+	    qdisc_qstats_copy(d, sch) < 0)
 		return -1;
 	return 0;
 }
diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index d364e63c396d..ea0dc112b38d 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -561,8 +561,7 @@ static int mqprio_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 		sch = dev_queue->qdisc_sleeping;
 		if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch),
 					  d, NULL, &sch->bstats) < 0 ||
-		    gnet_stats_copy_queue(d, NULL,
-					  &sch->qstats, sch->q.qlen) < 0)
+		    qdisc_qstats_copy(d, sch) < 0)
 			return -1;
 	}
 	return 0;
diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c
index 7410ce4d0321..35b03ae08e0f 100644
--- a/net/sched/sch_multiq.c
+++ b/net/sched/sch_multiq.c
@@ -201,9 +201,9 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt,
 	for (i = q->bands; i < q->max_bands; i++) {
 		if (q->queues[i] != &noop_qdisc) {
 			struct Qdisc *child = q->queues[i];
+
 			q->queues[i] = &noop_qdisc;
-			qdisc_tree_reduce_backlog(child, child->q.qlen,
-						  child->qstats.backlog);
+			qdisc_tree_flush_backlog(child);
 			qdisc_put(child);
 		}
 	}
@@ -225,9 +225,7 @@ static int multiq_tune(struct Qdisc *sch, struct nlattr *opt,
 					qdisc_hash_add(child, true);
 
 				if (old != &noop_qdisc) {
-					qdisc_tree_reduce_backlog(old,
-								  old->q.qlen,
-								  old->qstats.backlog);
+					qdisc_tree_flush_backlog(old);
 					qdisc_put(old);
 				}
 				sch_tree_unlock(sch);
@@ -344,7 +342,7 @@ static int multiq_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 	cl_q = q->queues[cl - 1];
 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch),
 				  d, NULL, &cl_q->bstats) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &cl_q->qstats, cl_q->q.qlen) < 0)
+	    qdisc_qstats_copy(d, cl_q) < 0)
 		return -1;
 
 	return 0;
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 847141cd900f..d519b21535b3 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -216,12 +216,8 @@ static int prio_tune(struct Qdisc *sch, struct nlattr *opt,
 	q->bands = qopt->bands;
 	memcpy(q->prio2band, qopt->priomap, TC_PRIO_MAX+1);
 
-	for (i = q->bands; i < oldbands; i++) {
-		struct Qdisc *child = q->queues[i];
-
-		qdisc_tree_reduce_backlog(child, child->q.qlen,
-					  child->qstats.backlog);
-	}
+	for (i = q->bands; i < oldbands; i++)
+		qdisc_tree_flush_backlog(q->queues[i]);
 
 	for (i = oldbands; i < q->bands; i++) {
 		q->queues[i] = queues[i];
@@ -365,7 +361,7 @@ static int prio_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 	cl_q = q->queues[cl - 1];
 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch),
 				  d, NULL, &cl_q->bstats) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &cl_q->qstats, cl_q->q.qlen) < 0)
+	    qdisc_qstats_copy(d, cl_q) < 0)
 		return -1;
 
 	return 0;
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 29f5c4a24688..1589364b54da 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -217,15 +217,6 @@ static struct qfq_class *qfq_find_class(struct Qdisc *sch, u32 classid)
 	return container_of(clc, struct qfq_class, common);
 }
 
-static void qfq_purge_queue(struct qfq_class *cl)
-{
-	unsigned int len = cl->qdisc->q.qlen;
-	unsigned int backlog = cl->qdisc->qstats.backlog;
-
-	qdisc_reset(cl->qdisc);
-	qdisc_tree_reduce_backlog(cl->qdisc, len, backlog);
-}
-
 static const struct nla_policy qfq_policy[TCA_QFQ_MAX + 1] = {
 	[TCA_QFQ_WEIGHT] = { .type = NLA_U32 },
 	[TCA_QFQ_LMAX] = { .type = NLA_U32 },
@@ -551,7 +542,7 @@ static int qfq_delete_class(struct Qdisc *sch, unsigned long arg)
 
 	sch_tree_lock(sch);
 
-	qfq_purge_queue(cl);
+	qdisc_purge_queue(cl->qdisc);
 	qdisc_class_hash_remove(&q->clhash, &cl->common);
 
 	sch_tree_unlock(sch);
@@ -655,8 +646,7 @@ static int qfq_dump_class_stats(struct Qdisc *sch, unsigned long arg,
 	if (gnet_stats_copy_basic(qdisc_root_sleeping_running(sch),
 				  d, NULL, &cl->bstats) < 0 ||
 	    gnet_stats_copy_rate_est(d, &cl->rate_est) < 0 ||
-	    gnet_stats_copy_queue(d, NULL,
-				  &cl->qdisc->qstats, cl->qdisc->q.qlen) < 0)
+	    qdisc_qstats_copy(d, cl->qdisc) < 0)
 		return -1;
 
 	return gnet_stats_copy_app(d, &xstats, sizeof(xstats));
diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c
index 9df9942340ea..4e8c0abf6194 100644
--- a/net/sched/sch_red.c
+++ b/net/sched/sch_red.c
@@ -233,8 +233,7 @@ static int red_change(struct Qdisc *sch, struct nlattr *opt,
 	q->flags = ctl->flags;
 	q->limit = ctl->limit;
 	if (child) {
-		qdisc_tree_reduce_backlog(q->qdisc, q->qdisc->q.qlen,
-					  q->qdisc->qstats.backlog);
+		qdisc_tree_flush_backlog(q->qdisc);
 		old_child = q->qdisc;
 		q->qdisc = child;
 	}
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index bab506b01a32..2419fdb75966 100644
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -521,8 +521,7 @@ static int sfb_change(struct Qdisc *sch, struct nlattr *opt,
 		qdisc_hash_add(child, true);
 	sch_tree_lock(sch);
 
-	qdisc_tree_reduce_backlog(q->qdisc, q->qdisc->q.qlen,
-				  q->qdisc->qstats.backlog);
+	qdisc_tree_flush_backlog(q->qdisc);
 	qdisc_put(q->qdisc);
 	q->qdisc = child;
 
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index 206e4dbed12f..c7041999eb5d 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -895,7 +895,7 @@ static int taprio_dump_class_stats(struct Qdisc *sch, unsigned long cl,
 
 	sch = dev_queue->qdisc_sleeping;
 	if (gnet_stats_copy_basic(&sch->running, d, NULL, &sch->bstats) < 0 ||
-	    gnet_stats_copy_queue(d, NULL, &sch->qstats, sch->q.qlen) < 0)
+	    qdisc_qstats_copy(d, sch) < 0)
 		return -1;
 	return 0;
 }
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 7f272a9070c5..f71578dbb9e3 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -391,8 +391,7 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt,
 
 	sch_tree_lock(sch);
 	if (child) {
-		qdisc_tree_reduce_backlog(q->qdisc, q->qdisc->q.qlen,
-					  q->qdisc->qstats.backlog);
+		qdisc_tree_flush_backlog(q->qdisc);
 		qdisc_put(q->qdisc);
 		q->qdisc = child;
 	}
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 6abc8b274270..951afdeea5e9 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -600,6 +600,7 @@ out:
 static int sctp_v4_addr_to_user(struct sctp_sock *sp, union sctp_addr *addr)
 {
 	/* No address mapping for V4 sockets */
+	memset(addr->v4.sin_zero, 0, sizeof(addr->v4.sin_zero));
 	return sizeof(struct sockaddr_in);
 }
 
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 1d143bc3f73d..4aa03588f87b 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1112,32 +1112,6 @@ static void sctp_cmd_send_msg(struct sctp_association *asoc,
 }
 
 
-/* Sent the next ASCONF packet currently stored in the association.
- * This happens after the ASCONF_ACK was succeffully processed.
- */
-static void sctp_cmd_send_asconf(struct sctp_association *asoc)
-{
-	struct net *net = sock_net(asoc->base.sk);
-
-	/* Send the next asconf chunk from the addip chunk
-	 * queue.
-	 */
-	if (!list_empty(&asoc->addip_chunk_list)) {
-		struct list_head *entry = asoc->addip_chunk_list.next;
-		struct sctp_chunk *asconf = list_entry(entry,
-						struct sctp_chunk, list);
-		list_del_init(entry);
-
-		/* Hold the chunk until an ASCONF_ACK is received. */
-		sctp_chunk_hold(asconf);
-		if (sctp_primitive_ASCONF(net, asoc, asconf))
-			sctp_chunk_free(asconf);
-		else
-			asoc->addip_last_asconf = asconf;
-	}
-}
-
-
 /* These three macros allow us to pull the debugging code out of the
  * main flow of sctp_do_sm() to keep attention focused on the real
  * functionality there.
@@ -1783,9 +1757,6 @@ static int sctp_cmd_interpreter(enum sctp_event_type event_type,
 			}
 			sctp_cmd_send_msg(asoc, cmd->obj.msg, gfp);
 			break;
-		case SCTP_CMD_SEND_NEXT_ASCONF:
-			sctp_cmd_send_asconf(asoc);
-			break;
 		case SCTP_CMD_PURGE_ASCONF_QUEUE:
 			sctp_asconf_queue_teardown(asoc);
 			break;
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index c9ae3404b1bb..713a669d2058 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -3824,6 +3824,29 @@ enum sctp_disposition sctp_sf_do_asconf(struct net *net,
 	return SCTP_DISPOSITION_CONSUME;
 }
 
+static enum sctp_disposition sctp_send_next_asconf(
+					struct net *net,
+					const struct sctp_endpoint *ep,
+					struct sctp_association *asoc,
+					const union sctp_subtype type,
+					struct sctp_cmd_seq *commands)
+{
+	struct sctp_chunk *asconf;
+	struct list_head *entry;
+
+	if (list_empty(&asoc->addip_chunk_list))
+		return SCTP_DISPOSITION_CONSUME;
+
+	entry = asoc->addip_chunk_list.next;
+	asconf = list_entry(entry, struct sctp_chunk, list);
+
+	list_del_init(entry);
+	sctp_chunk_hold(asconf);
+	asoc->addip_last_asconf = asconf;
+
+	return sctp_sf_do_prm_asconf(net, ep, asoc, type, asconf, commands);
+}
+
 /*
  * ADDIP Section 4.3 General rules for address manipulation
  * When building TLV parameters for the ASCONF Chunk that will add or
@@ -3915,14 +3938,10 @@ enum sctp_disposition sctp_sf_do_asconf_ack(struct net *net,
 				SCTP_TO(SCTP_EVENT_TIMEOUT_T4_RTO));
 
 		if (!sctp_process_asconf_ack((struct sctp_association *)asoc,
-					     asconf_ack)) {
-			/* Successfully processed ASCONF_ACK.  We can
-			 * release the next asconf if we have one.
-			 */
-			sctp_add_cmd_sf(commands, SCTP_CMD_SEND_NEXT_ASCONF,
-					SCTP_NULL());
-			return SCTP_DISPOSITION_CONSUME;
-		}
+					     asconf_ack))
+			return sctp_send_next_asconf(net, ep,
+					(struct sctp_association *)asoc,
+							type, commands);
 
 		abort = sctp_make_abort(asoc, asconf_ack,
 					sizeof(struct sctp_errhdr));
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 6140471efd4b..4583fa914e62 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -999,7 +999,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
 	if (unlikely(addrs_size <= 0))
 		return -EINVAL;
 
-	kaddrs = vmemdup_user(addrs, addrs_size);
+	kaddrs = memdup_user(addrs, addrs_size);
 	if (unlikely(IS_ERR(kaddrs)))
 		return PTR_ERR(kaddrs);
 
@@ -1007,7 +1007,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
 	addr_buf = kaddrs;
 	while (walk_size < addrs_size) {
 		if (walk_size + sizeof(sa_family_t) > addrs_size) {
-			kvfree(kaddrs);
+			kfree(kaddrs);
 			return -EINVAL;
 		}
 
@@ -1018,7 +1018,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
 		 * causes the address buffer to overflow return EINVAL.
 		 */
 		if (!af || (walk_size + af->sockaddr_len) > addrs_size) {
-			kvfree(kaddrs);
+			kfree(kaddrs);
 			return -EINVAL;
 		}
 		addrcnt++;
@@ -1054,7 +1054,7 @@ static int sctp_setsockopt_bindx(struct sock *sk,
 	}
 
 out:
-	kvfree(kaddrs);
+	kfree(kaddrs);
 
 	return err;
 }
@@ -1329,7 +1329,7 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
 	if (unlikely(addrs_size <= 0))
 		return -EINVAL;
 
-	kaddrs = vmemdup_user(addrs, addrs_size);
+	kaddrs = memdup_user(addrs, addrs_size);
 	if (unlikely(IS_ERR(kaddrs)))
 		return PTR_ERR(kaddrs);
 
@@ -1349,7 +1349,7 @@ static int __sctp_setsockopt_connectx(struct sock *sk,
 	err = __sctp_connect(sk, kaddrs, addrs_size, flags, assoc_id);
 
 out_free:
-	kvfree(kaddrs);
+	kfree(kaddrs);
 
 	return err;
 }
@@ -2920,6 +2920,9 @@ static int sctp_setsockopt_delayed_ack(struct sock *sk,
 		return 0;
 	}
 
+	if (sctp_style(sk, TCP))
+		params.sack_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (params.sack_assoc_id == SCTP_FUTURE_ASSOC ||
 	    params.sack_assoc_id == SCTP_ALL_ASSOC) {
 		if (params.sack_delay) {
@@ -3024,6 +3027,9 @@ static int sctp_setsockopt_default_send_param(struct sock *sk,
 		return 0;
 	}
 
+	if (sctp_style(sk, TCP))
+		info.sinfo_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (info.sinfo_assoc_id == SCTP_FUTURE_ASSOC ||
 	    info.sinfo_assoc_id == SCTP_ALL_ASSOC) {
 		sp->default_stream = info.sinfo_stream;
@@ -3081,6 +3087,9 @@ static int sctp_setsockopt_default_sndinfo(struct sock *sk,
 		return 0;
 	}
 
+	if (sctp_style(sk, TCP))
+		info.snd_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (info.snd_assoc_id == SCTP_FUTURE_ASSOC ||
 	    info.snd_assoc_id == SCTP_ALL_ASSOC) {
 		sp->default_stream = info.snd_sid;
@@ -3531,6 +3540,9 @@ static int sctp_setsockopt_context(struct sock *sk, char __user *optval,
 		return 0;
 	}
 
+	if (sctp_style(sk, TCP))
+		params.assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (params.assoc_id == SCTP_FUTURE_ASSOC ||
 	    params.assoc_id == SCTP_ALL_ASSOC)
 		sp->default_rcv_context = params.assoc_value;
@@ -3670,6 +3682,9 @@ static int sctp_setsockopt_maxburst(struct sock *sk,
 		return 0;
 	}
 
+	if (sctp_style(sk, TCP))
+		params.assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (params.assoc_id == SCTP_FUTURE_ASSOC ||
 	    params.assoc_id == SCTP_ALL_ASSOC)
 		sp->max_burst = params.assoc_value;
@@ -3798,6 +3813,9 @@ static int sctp_setsockopt_auth_key(struct sock *sk,
 		goto out;
 	}
 
+	if (sctp_style(sk, TCP))
+		authkey->sca_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (authkey->sca_assoc_id == SCTP_FUTURE_ASSOC ||
 	    authkey->sca_assoc_id == SCTP_ALL_ASSOC) {
 		ret = sctp_auth_set_key(ep, asoc, authkey);
@@ -3853,6 +3871,9 @@ static int sctp_setsockopt_active_key(struct sock *sk,
 	if (asoc)
 		return sctp_auth_set_active_key(ep, asoc, val.scact_keynumber);
 
+	if (sctp_style(sk, TCP))
+		val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
 	    val.scact_assoc_id == SCTP_ALL_ASSOC) {
 		ret = sctp_auth_set_active_key(ep, asoc, val.scact_keynumber);
@@ -3904,6 +3925,9 @@ static int sctp_setsockopt_del_key(struct sock *sk,
 	if (asoc)
 		return sctp_auth_del_key_id(ep, asoc, val.scact_keynumber);
 
+	if (sctp_style(sk, TCP))
+		val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
 	    val.scact_assoc_id == SCTP_ALL_ASSOC) {
 		ret = sctp_auth_del_key_id(ep, asoc, val.scact_keynumber);
@@ -3954,6 +3978,9 @@ static int sctp_setsockopt_deactivate_key(struct sock *sk, char __user *optval,
 	if (asoc)
 		return sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber);
 
+	if (sctp_style(sk, TCP))
+		val.scact_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (val.scact_assoc_id == SCTP_FUTURE_ASSOC ||
 	    val.scact_assoc_id == SCTP_ALL_ASSOC) {
 		ret = sctp_auth_deact_key_id(ep, asoc, val.scact_keynumber);
@@ -4169,6 +4196,9 @@ static int sctp_setsockopt_default_prinfo(struct sock *sk,
 		goto out;
 	}
 
+	if (sctp_style(sk, TCP))
+		info.pr_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (info.pr_assoc_id == SCTP_FUTURE_ASSOC ||
 	    info.pr_assoc_id == SCTP_ALL_ASSOC) {
 		SCTP_PR_SET_POLICY(sp->default_flags, info.pr_policy);
@@ -4251,6 +4281,9 @@ static int sctp_setsockopt_enable_strreset(struct sock *sk,
 		goto out;
 	}
 
+	if (sctp_style(sk, TCP))
+		params.assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (params.assoc_id == SCTP_FUTURE_ASSOC ||
 	    params.assoc_id == SCTP_ALL_ASSOC)
 		ep->strreset_enable = params.assoc_value;
@@ -4376,6 +4409,9 @@ static int sctp_setsockopt_scheduler(struct sock *sk,
 	if (asoc)
 		return sctp_sched_set_sched(asoc, params.assoc_value);
 
+	if (sctp_style(sk, TCP))
+		params.assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (params.assoc_id == SCTP_FUTURE_ASSOC ||
 	    params.assoc_id == SCTP_ALL_ASSOC)
 		sp->default_ss = params.assoc_value;
@@ -4541,6 +4577,9 @@ static int sctp_setsockopt_event(struct sock *sk, char __user *optval,
 	if (asoc)
 		return sctp_assoc_ulpevent_type_set(&param, asoc);
 
+	if (sctp_style(sk, TCP))
+		param.se_assoc_id = SCTP_FUTURE_ASSOC;
+
 	if (param.se_assoc_id == SCTP_FUTURE_ASSOC ||
 	    param.se_assoc_id == SCTP_ALL_ASSOC)
 		sctp_ulpevent_type_set(&sp->subscribe,
@@ -4808,7 +4847,8 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr,
 	}
 
 	/* Validate addr_len before calling common connect/connectx routine. */
-	af = sctp_get_af_specific(addr->sa_family);
+	af = addr_len < offsetofend(struct sockaddr, sa_family) ? NULL :
+		sctp_get_af_specific(addr->sa_family);
 	if (!af || addr_len < af->sockaddr_len) {
 		err = -EINVAL;
 	} else {
@@ -9169,7 +9209,7 @@ static inline void sctp_copy_descendant(struct sock *sk_to,
 {
 	int ancestor_size = sizeof(struct inet_sock) +
 			    sizeof(struct sctp_sock) -
-			    offsetof(struct sctp_sock, auto_asconf_list);
+			    offsetof(struct sctp_sock, pd_lobby);
 
 	if (sk_from->sk_family == PF_INET6)
 		ancestor_size += sizeof(struct ipv6_pinfo);
@@ -9253,7 +9293,6 @@ static int sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
 	 * 2) Peeling off partial delivery; keep pd_lobby in new pd_lobby.
 	 * 3) Peeling off non-partial delivery; move pd_lobby to receive_queue.
 	 */
-	skb_queue_head_init(&newsp->pd_lobby);
 	atomic_set(&sctp_sk(newsk)->pd_mode, assoc->ulpq.pd_mode);
 
 	if (atomic_read(&sctp_sk(oldsk)->pd_mode)) {
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 77ef53596d18..6f869ef49b32 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -167,10 +167,9 @@ static int smc_release(struct socket *sock)
 
 	if (sk->sk_state == SMC_CLOSED) {
 		if (smc->clcsock) {
-			mutex_lock(&smc->clcsock_release_lock);
-			sock_release(smc->clcsock);
-			smc->clcsock = NULL;
-			mutex_unlock(&smc->clcsock_release_lock);
+			release_sock(sk);
+			smc_clcsock_release(smc);
+			lock_sock(sk);
 		}
 		if (!smc->use_fallback)
 			smc_conn_free(&smc->conn);
@@ -446,10 +445,19 @@ static void smc_link_save_peer_info(struct smc_link *link,
 	link->peer_mtu = clc->qp_mtu;
 }
 
+static void smc_switch_to_fallback(struct smc_sock *smc)
+{
+	smc->use_fallback = true;
+	if (smc->sk.sk_socket && smc->sk.sk_socket->file) {
+		smc->clcsock->file = smc->sk.sk_socket->file;
+		smc->clcsock->file->private_data = smc->clcsock;
+	}
+}
+
 /* fall back during connect */
 static int smc_connect_fallback(struct smc_sock *smc, int reason_code)
 {
-	smc->use_fallback = true;
+	smc_switch_to_fallback(smc);
 	smc->fallback_rsn = reason_code;
 	smc_copy_sock_settings_to_clc(smc);
 	if (smc->sk.sk_state == SMC_INIT)
@@ -775,10 +783,14 @@ static void smc_connect_work(struct work_struct *work)
 		smc->sk.sk_err = -rc;
 
 out:
-	if (smc->sk.sk_err)
-		smc->sk.sk_state_change(&smc->sk);
-	else
-		smc->sk.sk_write_space(&smc->sk);
+	if (!sock_flag(&smc->sk, SOCK_DEAD)) {
+		if (smc->sk.sk_err) {
+			smc->sk.sk_state_change(&smc->sk);
+		} else { /* allow polling before and after fallback decision */
+			smc->clcsock->sk->sk_write_space(smc->clcsock->sk);
+			smc->sk.sk_write_space(&smc->sk);
+		}
+	}
 	kfree(smc->connect_info);
 	smc->connect_info = NULL;
 	release_sock(&smc->sk);
@@ -872,11 +884,11 @@ static int smc_clcsock_accept(struct smc_sock *lsmc, struct smc_sock **new_smc)
 	if  (rc < 0)
 		lsk->sk_err = -rc;
 	if (rc < 0 || lsk->sk_state == SMC_CLOSED) {
+		new_sk->sk_prot->unhash(new_sk);
 		if (new_clcsock)
 			sock_release(new_clcsock);
 		new_sk->sk_state = SMC_CLOSED;
 		sock_set_flag(new_sk, SOCK_DEAD);
-		new_sk->sk_prot->unhash(new_sk);
 		sock_put(new_sk); /* final */
 		*new_smc = NULL;
 		goto out;
@@ -927,16 +939,21 @@ struct sock *smc_accept_dequeue(struct sock *parent,
 
 		smc_accept_unlink(new_sk);
 		if (new_sk->sk_state == SMC_CLOSED) {
+			new_sk->sk_prot->unhash(new_sk);
 			if (isk->clcsock) {
 				sock_release(isk->clcsock);
 				isk->clcsock = NULL;
 			}
-			new_sk->sk_prot->unhash(new_sk);
 			sock_put(new_sk); /* final */
 			continue;
 		}
-		if (new_sock)
+		if (new_sock) {
 			sock_graft(new_sk, new_sock);
+			if (isk->use_fallback) {
+				smc_sk(new_sk)->clcsock->file = new_sock->file;
+				isk->clcsock->file->private_data = isk->clcsock;
+			}
+		}
 		return new_sk;
 	}
 	return NULL;
@@ -956,6 +973,7 @@ void smc_close_non_accepted(struct sock *sk)
 		sock_set_flag(sk, SOCK_DEAD);
 		sk->sk_shutdown |= SHUTDOWN_MASK;
 	}
+	sk->sk_prot->unhash(sk);
 	if (smc->clcsock) {
 		struct socket *tcp;
 
@@ -971,7 +989,6 @@ void smc_close_non_accepted(struct sock *sk)
 			smc_conn_free(&smc->conn);
 	}
 	release_sock(sk);
-	sk->sk_prot->unhash(sk);
 	sock_put(sk); /* final sock_put */
 }
 
@@ -1037,13 +1054,13 @@ static void smc_listen_out(struct smc_sock *new_smc)
 	struct smc_sock *lsmc = new_smc->listen_smc;
 	struct sock *newsmcsk = &new_smc->sk;
 
-	lock_sock_nested(&lsmc->sk, SINGLE_DEPTH_NESTING);
 	if (lsmc->sk.sk_state == SMC_LISTEN) {
+		lock_sock_nested(&lsmc->sk, SINGLE_DEPTH_NESTING);
 		smc_accept_enqueue(&lsmc->sk, newsmcsk);
+		release_sock(&lsmc->sk);
 	} else { /* no longer listening */
 		smc_close_non_accepted(newsmcsk);
 	}
-	release_sock(&lsmc->sk);
 
 	/* Wake up accept */
 	lsmc->sk.sk_data_ready(&lsmc->sk);
@@ -1087,7 +1104,7 @@ static void smc_listen_decline(struct smc_sock *new_smc, int reason_code,
 		return;
 	}
 	smc_conn_free(&new_smc->conn);
-	new_smc->use_fallback = true;
+	smc_switch_to_fallback(new_smc);
 	new_smc->fallback_rsn = reason_code;
 	if (reason_code && reason_code != SMC_CLC_DECL_PEERDECL) {
 		if (smc_clc_send_decline(new_smc, reason_code) < 0) {
@@ -1237,6 +1254,9 @@ static void smc_listen_work(struct work_struct *work)
 	int rc = 0;
 	u8 ibport;
 
+	if (new_smc->listen_smc->sk.sk_state != SMC_LISTEN)
+		return smc_listen_out_err(new_smc);
+
 	if (new_smc->use_fallback) {
 		smc_listen_out_connected(new_smc);
 		return;
@@ -1244,7 +1264,7 @@ static void smc_listen_work(struct work_struct *work)
 
 	/* check if peer is smc capable */
 	if (!tcp_sk(newclcsock->sk)->syn_smc) {
-		new_smc->use_fallback = true;
+		smc_switch_to_fallback(new_smc);
 		new_smc->fallback_rsn = SMC_CLC_DECL_PEERNOSMC;
 		smc_listen_out_connected(new_smc);
 		return;
@@ -1501,7 +1521,7 @@ static int smc_sendmsg(struct socket *sock, struct msghdr *msg, size_t len)
 
 	if (msg->msg_flags & MSG_FASTOPEN) {
 		if (sk->sk_state == SMC_INIT) {
-			smc->use_fallback = true;
+			smc_switch_to_fallback(smc);
 			smc->fallback_rsn = SMC_CLC_DECL_OPTUNSUPP;
 		} else {
 			rc = -EINVAL;
@@ -1703,7 +1723,7 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
 	case TCP_FASTOPEN_NO_COOKIE:
 		/* option not supported by SMC */
 		if (sk->sk_state == SMC_INIT) {
-			smc->use_fallback = true;
+			smc_switch_to_fallback(smc);
 			smc->fallback_rsn = SMC_CLC_DECL_OPTUNSUPP;
 		} else {
 			if (!smc->use_fallback)
diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 2ad37e998509..fc06720b53c1 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -21,6 +21,22 @@
 
 #define SMC_CLOSE_WAIT_LISTEN_CLCSOCK_TIME	(5 * HZ)
 
+/* release the clcsock that is assigned to the smc_sock */
+void smc_clcsock_release(struct smc_sock *smc)
+{
+	struct socket *tcp;
+
+	if (smc->listen_smc && current_work() != &smc->smc_listen_work)
+		cancel_work_sync(&smc->smc_listen_work);
+	mutex_lock(&smc->clcsock_release_lock);
+	if (smc->clcsock) {
+		tcp = smc->clcsock;
+		smc->clcsock = NULL;
+		sock_release(tcp);
+	}
+	mutex_unlock(&smc->clcsock_release_lock);
+}
+
 static void smc_close_cleanup_listen(struct sock *parent)
 {
 	struct sock *sk;
@@ -321,6 +337,7 @@ static void smc_close_passive_work(struct work_struct *work)
 						   close_work);
 	struct smc_sock *smc = container_of(conn, struct smc_sock, conn);
 	struct smc_cdc_conn_state_flags *rxflags;
+	bool release_clcsock = false;
 	struct sock *sk = &smc->sk;
 	int old_state;
 
@@ -400,13 +417,13 @@ wakeup:
 		if ((sk->sk_state == SMC_CLOSED) &&
 		    (sock_flag(sk, SOCK_DEAD) || !sk->sk_socket)) {
 			smc_conn_free(conn);
-			if (smc->clcsock) {
-				sock_release(smc->clcsock);
-				smc->clcsock = NULL;
-			}
+			if (smc->clcsock)
+				release_clcsock = true;
 		}
 	}
 	release_sock(sk);
+	if (release_clcsock)
+		smc_clcsock_release(smc);
 	sock_put(sk); /* sock_hold done by schedulers of close_work */
 }
 
diff --git a/net/smc/smc_close.h b/net/smc/smc_close.h
index 19eb6a211c23..e0e3b5df25d2 100644
--- a/net/smc/smc_close.h
+++ b/net/smc/smc_close.h
@@ -23,5 +23,6 @@ void smc_close_wake_tx_prepared(struct smc_sock *smc);
 int smc_close_active(struct smc_sock *smc);
 int smc_close_shutdown_write(struct smc_sock *smc);
 void smc_close_init(struct smc_sock *smc);
+void smc_clcsock_release(struct smc_sock *smc);
 
 #endif /* SMC_CLOSE_H */
diff --git a/net/smc/smc_ism.c b/net/smc/smc_ism.c
index 2fff79db1a59..e89e918b88e0 100644
--- a/net/smc/smc_ism.c
+++ b/net/smc/smc_ism.c
@@ -289,6 +289,11 @@ struct smcd_dev *smcd_alloc_dev(struct device *parent, const char *name,
 	INIT_LIST_HEAD(&smcd->vlan);
 	smcd->event_wq = alloc_ordered_workqueue("ism_evt_wq-%s)",
 						 WQ_MEM_RECLAIM, name);
+	if (!smcd->event_wq) {
+		kfree(smcd->conn);
+		kfree(smcd);
+		return NULL;
+	}
 	return smcd;
 }
 EXPORT_SYMBOL_GPL(smcd_alloc_dev);
diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c
index 8d2f6296279c..0285c7f9e79b 100644
--- a/net/smc/smc_pnet.c
+++ b/net/smc/smc_pnet.c
@@ -603,7 +603,8 @@ static int smc_pnet_flush(struct sk_buff *skb, struct genl_info *info)
 {
 	struct net *net = genl_info_net(info);
 
-	return smc_pnet_remove_by_pnetid(net, NULL);
+	smc_pnet_remove_by_pnetid(net, NULL);
+	return 0;
 }
 
 /* SMC_PNETID generic netlink operation definition */
diff --git a/net/socket.c b/net/socket.c
index 3c176a12fe48..8255f5bda0aa 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -384,6 +384,18 @@ static struct file_system_type sock_fs_type = {
  *	but we take care of internal coherence yet.
  */
 
+/**
+ *	sock_alloc_file - Bind a &socket to a &file
+ *	@sock: socket
+ *	@flags: file status flags
+ *	@dname: protocol name
+ *
+ *	Returns the &file bound with @sock, implicitly storing it
+ *	in sock->file. If dname is %NULL, sets to "".
+ *	On failure the return is a ERR pointer (see linux/err.h).
+ *	This function uses GFP_KERNEL internally.
+ */
+
 struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname)
 {
 	struct file *file;
@@ -424,6 +436,14 @@ static int sock_map_fd(struct socket *sock, int flags)
 	return PTR_ERR(newfile);
 }
 
+/**
+ *	sock_from_file - Return the &socket bounded to @file.
+ *	@file: file
+ *	@err: pointer to an error code return
+ *
+ *	On failure returns %NULL and assigns -ENOTSOCK to @err.
+ */
+
 struct socket *sock_from_file(struct file *file, int *err)
 {
 	if (file->f_op == &socket_file_ops)
@@ -532,11 +552,11 @@ static const struct inode_operations sockfs_inode_ops = {
 };
 
 /**
- *	sock_alloc	-	allocate a socket
+ *	sock_alloc - allocate a socket
  *
  *	Allocate a new inode and socket object. The two are bound together
  *	and initialised. The socket is then returned. If we are out of inodes
- *	NULL is returned.
+ *	NULL is returned. This functions uses GFP_KERNEL internally.
  */
 
 struct socket *sock_alloc(void)
@@ -561,7 +581,7 @@ struct socket *sock_alloc(void)
 EXPORT_SYMBOL(sock_alloc);
 
 /**
- *	sock_release	-	close a socket
+ *	sock_release - close a socket
  *	@sock: socket to close
  *
  *	The socket is released from the protocol stack if it has a release
@@ -617,6 +637,15 @@ void __sock_tx_timestamp(__u16 tsflags, __u8 *tx_flags)
 }
 EXPORT_SYMBOL(__sock_tx_timestamp);
 
+/**
+ *	sock_sendmsg - send a message through @sock
+ *	@sock: socket
+ *	@msg: message to send
+ *
+ *	Sends @msg through @sock, passing through LSM.
+ *	Returns the number of bytes sent, or an error code.
+ */
+
 static inline int sock_sendmsg_nosec(struct socket *sock, struct msghdr *msg)
 {
 	int ret = sock->ops->sendmsg(sock, msg, msg_data_left(msg));
@@ -633,6 +662,18 @@ int sock_sendmsg(struct socket *sock, struct msghdr *msg)
 }
 EXPORT_SYMBOL(sock_sendmsg);
 
+/**
+ *	kernel_sendmsg - send a message through @sock (kernel-space)
+ *	@sock: socket
+ *	@msg: message header
+ *	@vec: kernel vec
+ *	@num: vec array length
+ *	@size: total message data size
+ *
+ *	Builds the message data with @vec and sends it through @sock.
+ *	Returns the number of bytes sent, or an error code.
+ */
+
 int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
 		   struct kvec *vec, size_t num, size_t size)
 {
@@ -641,6 +682,19 @@ int kernel_sendmsg(struct socket *sock, struct msghdr *msg,
 }
 EXPORT_SYMBOL(kernel_sendmsg);
 
+/**
+ *	kernel_sendmsg_locked - send a message through @sock (kernel-space)
+ *	@sk: sock
+ *	@msg: message header
+ *	@vec: output s/g array
+ *	@num: output s/g array length
+ *	@size: total message data size
+ *
+ *	Builds the message data with @vec and sends it through @sock.
+ *	Returns the number of bytes sent, or an error code.
+ *	Caller must hold @sk.
+ */
+
 int kernel_sendmsg_locked(struct sock *sk, struct msghdr *msg,
 			  struct kvec *vec, size_t num, size_t size)
 {
@@ -811,6 +865,16 @@ void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
 }
 EXPORT_SYMBOL_GPL(__sock_recv_ts_and_drops);
 
+/**
+ *	sock_recvmsg - receive a message from @sock
+ *	@sock: socket
+ *	@msg: message to receive
+ *	@flags: message flags
+ *
+ *	Receives @msg from @sock, passing through LSM. Returns the total number
+ *	of bytes received, or an error.
+ */
+
 static inline int sock_recvmsg_nosec(struct socket *sock, struct msghdr *msg,
 				     int flags)
 {
@@ -826,20 +890,21 @@ int sock_recvmsg(struct socket *sock, struct msghdr *msg, int flags)
 EXPORT_SYMBOL(sock_recvmsg);
 
 /**
- * kernel_recvmsg - Receive a message from a socket (kernel space)
- * @sock:       The socket to receive the message from
- * @msg:        Received message
- * @vec:        Input s/g array for message data
- * @num:        Size of input s/g array
- * @size:       Number of bytes to read
- * @flags:      Message flags (MSG_DONTWAIT, etc...)
+ *	kernel_recvmsg - Receive a message from a socket (kernel space)
+ *	@sock: The socket to receive the message from
+ *	@msg: Received message
+ *	@vec: Input s/g array for message data
+ *	@num: Size of input s/g array
+ *	@size: Number of bytes to read
+ *	@flags: Message flags (MSG_DONTWAIT, etc...)
  *
- * On return the msg structure contains the scatter/gather array passed in the
- * vec argument. The array is modified so that it consists of the unfilled
- * portion of the original array.
+ *	On return the msg structure contains the scatter/gather array passed in the
+ *	vec argument. The array is modified so that it consists of the unfilled
+ *	portion of the original array.
  *
- * The returned value is the total number of bytes received, or an error.
+ *	The returned value is the total number of bytes received, or an error.
  */
+
 int kernel_recvmsg(struct socket *sock, struct msghdr *msg,
 		   struct kvec *vec, size_t num, size_t size, int flags)
 {
@@ -1005,6 +1070,13 @@ static long sock_do_ioctl(struct net *net, struct socket *sock,
  *	what to do with it - that's up to the protocol still.
  */
 
+/**
+ *	get_net_ns - increment the refcount of the network namespace
+ *	@ns: common namespace (net)
+ *
+ *	Returns the net's common namespace.
+ */
+
 struct ns_common *get_net_ns(struct ns_common *ns)
 {
 	return &get_net(container_of(ns, struct net, ns))->ns;
@@ -1099,6 +1171,19 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
 	return err;
 }
 
+/**
+ *	sock_create_lite - creates a socket
+ *	@family: protocol family (AF_INET, ...)
+ *	@type: communication type (SOCK_STREAM, ...)
+ *	@protocol: protocol (0, ...)
+ *	@res: new socket
+ *
+ *	Creates a new socket and assigns it to @res, passing through LSM.
+ *	The new socket initialization is not complete, see kernel_accept().
+ *	Returns 0 or an error. On failure @res is set to %NULL.
+ *	This function internally uses GFP_KERNEL.
+ */
+
 int sock_create_lite(int family, int type, int protocol, struct socket **res)
 {
 	int err;
@@ -1224,6 +1309,21 @@ call_kill:
 }
 EXPORT_SYMBOL(sock_wake_async);
 
+/**
+ *	__sock_create - creates a socket
+ *	@net: net namespace
+ *	@family: protocol family (AF_INET, ...)
+ *	@type: communication type (SOCK_STREAM, ...)
+ *	@protocol: protocol (0, ...)
+ *	@res: new socket
+ *	@kern: boolean for kernel space sockets
+ *
+ *	Creates a new socket and assigns it to @res, passing through LSM.
+ *	Returns 0 or an error. On failure @res is set to %NULL. @kern must
+ *	be set to true if the socket resides in kernel space.
+ *	This function internally uses GFP_KERNEL.
+ */
+
 int __sock_create(struct net *net, int family, int type, int protocol,
 			 struct socket **res, int kern)
 {
@@ -1333,12 +1433,35 @@ out_release:
 }
 EXPORT_SYMBOL(__sock_create);
 
+/**
+ *	sock_create - creates a socket
+ *	@family: protocol family (AF_INET, ...)
+ *	@type: communication type (SOCK_STREAM, ...)
+ *	@protocol: protocol (0, ...)
+ *	@res: new socket
+ *
+ *	A wrapper around __sock_create().
+ *	Returns 0 or an error. This function internally uses GFP_KERNEL.
+ */
+
 int sock_create(int family, int type, int protocol, struct socket **res)
 {
 	return __sock_create(current->nsproxy->net_ns, family, type, protocol, res, 0);
 }
 EXPORT_SYMBOL(sock_create);
 
+/**
+ *	sock_create_kern - creates a socket (kernel space)
+ *	@net: net namespace
+ *	@family: protocol family (AF_INET, ...)
+ *	@type: communication type (SOCK_STREAM, ...)
+ *	@protocol: protocol (0, ...)
+ *	@res: new socket
+ *
+ *	A wrapper around __sock_create().
+ *	Returns 0 or an error. This function internally uses GFP_KERNEL.
+ */
+
 int sock_create_kern(struct net *net, int family, int type, int protocol, struct socket **res)
 {
 	return __sock_create(net, family, type, protocol, res, 1);
@@ -3322,18 +3445,46 @@ static long compat_sock_ioctl(struct file *file, unsigned int cmd,
 }
 #endif
 
+/**
+ *	kernel_bind - bind an address to a socket (kernel space)
+ *	@sock: socket
+ *	@addr: address
+ *	@addrlen: length of address
+ *
+ *	Returns 0 or an error.
+ */
+
 int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen)
 {
 	return sock->ops->bind(sock, addr, addrlen);
 }
 EXPORT_SYMBOL(kernel_bind);
 
+/**
+ *	kernel_listen - move socket to listening state (kernel space)
+ *	@sock: socket
+ *	@backlog: pending connections queue size
+ *
+ *	Returns 0 or an error.
+ */
+
 int kernel_listen(struct socket *sock, int backlog)
 {
 	return sock->ops->listen(sock, backlog);
 }
 EXPORT_SYMBOL(kernel_listen);
 
+/**
+ *	kernel_accept - accept a connection (kernel space)
+ *	@sock: listening socket
+ *	@newsock: new connected socket
+ *	@flags: flags
+ *
+ *	@flags must be SOCK_CLOEXEC, SOCK_NONBLOCK or 0.
+ *	If it fails, @newsock is guaranteed to be %NULL.
+ *	Returns 0 or an error.
+ */
+
 int kernel_accept(struct socket *sock, struct socket **newsock, int flags)
 {
 	struct sock *sk = sock->sk;
@@ -3359,6 +3510,19 @@ done:
 }
 EXPORT_SYMBOL(kernel_accept);
 
+/**
+ *	kernel_connect - connect a socket (kernel space)
+ *	@sock: socket
+ *	@addr: address
+ *	@addrlen: address length
+ *	@flags: flags (O_NONBLOCK, ...)
+ *
+ *	For datagram sockets, @addr is the addres to which datagrams are sent
+ *	by default, and the only address from which datagrams are received.
+ *	For stream sockets, attempts to connect to @addr.
+ *	Returns 0 or an error code.
+ */
+
 int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
 		   int flags)
 {
@@ -3366,18 +3530,48 @@ int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
 }
 EXPORT_SYMBOL(kernel_connect);
 
+/**
+ *	kernel_getsockname - get the address which the socket is bound (kernel space)
+ *	@sock: socket
+ *	@addr: address holder
+ *
+ * 	Fills the @addr pointer with the address which the socket is bound.
+ *	Returns 0 or an error code.
+ */
+
 int kernel_getsockname(struct socket *sock, struct sockaddr *addr)
 {
 	return sock->ops->getname(sock, addr, 0);
 }
 EXPORT_SYMBOL(kernel_getsockname);
 
+/**
+ *	kernel_peername - get the address which the socket is connected (kernel space)
+ *	@sock: socket
+ *	@addr: address holder
+ *
+ * 	Fills the @addr pointer with the address which the socket is connected.
+ *	Returns 0 or an error code.
+ */
+
 int kernel_getpeername(struct socket *sock, struct sockaddr *addr)
 {
 	return sock->ops->getname(sock, addr, 1);
 }
 EXPORT_SYMBOL(kernel_getpeername);
 
+/**
+ *	kernel_getsockopt - get a socket option (kernel space)
+ *	@sock: socket
+ *	@level: API level (SOL_SOCKET, ...)
+ *	@optname: option tag
+ *	@optval: option value
+ *	@optlen: option length
+ *
+ *	Assigns the option length to @optlen.
+ *	Returns 0 or an error.
+ */
+
 int kernel_getsockopt(struct socket *sock, int level, int optname,
 			char *optval, int *optlen)
 {
@@ -3400,6 +3594,17 @@ int kernel_getsockopt(struct socket *sock, int level, int optname,
 }
 EXPORT_SYMBOL(kernel_getsockopt);
 
+/**
+ *	kernel_setsockopt - set a socket option (kernel space)
+ *	@sock: socket
+ *	@level: API level (SOL_SOCKET, ...)
+ *	@optname: option tag
+ *	@optval: option value
+ *	@optlen: option length
+ *
+ *	Returns 0 or an error.
+ */
+
 int kernel_setsockopt(struct socket *sock, int level, int optname,
 			char *optval, unsigned int optlen)
 {
@@ -3420,6 +3625,17 @@ int kernel_setsockopt(struct socket *sock, int level, int optname,
 }
 EXPORT_SYMBOL(kernel_setsockopt);
 
+/**
+ *	kernel_sendpage - send a &page through a socket (kernel space)
+ *	@sock: socket
+ *	@page: page
+ *	@offset: page offset
+ *	@size: total size in bytes
+ *	@flags: flags (MSG_DONTWAIT, ...)
+ *
+ *	Returns the total amount sent in bytes or an error.
+ */
+
 int kernel_sendpage(struct socket *sock, struct page *page, int offset,
 		    size_t size, int flags)
 {
@@ -3430,6 +3646,18 @@ int kernel_sendpage(struct socket *sock, struct page *page, int offset,
 }
 EXPORT_SYMBOL(kernel_sendpage);
 
+/**
+ *	kernel_sendpage_locked - send a &page through the locked sock (kernel space)
+ *	@sk: sock
+ *	@page: page
+ *	@offset: page offset
+ *	@size: total size in bytes
+ *	@flags: flags (MSG_DONTWAIT, ...)
+ *
+ *	Returns the total amount sent in bytes or an error.
+ *	Caller must hold @sk.
+ */
+
 int kernel_sendpage_locked(struct sock *sk, struct page *page, int offset,
 			   size_t size, int flags)
 {
@@ -3443,17 +3671,30 @@ int kernel_sendpage_locked(struct sock *sk, struct page *page, int offset,
 }
 EXPORT_SYMBOL(kernel_sendpage_locked);
 
+/**
+ *	kernel_shutdown - shut down part of a full-duplex connection (kernel space)
+ *	@sock: socket
+ *	@how: connection part
+ *
+ *	Returns 0 or an error.
+ */
+
 int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how)
 {
 	return sock->ops->shutdown(sock, how);
 }
 EXPORT_SYMBOL(kernel_sock_shutdown);
 
-/* This routine returns the IP overhead imposed by a socket i.e.
- * the length of the underlying IP header, depending on whether
- * this is an IPv4 or IPv6 socket and the length from IP options turned
- * on at the socket. Assumes that the caller has a lock on the socket.
+/**
+ *	kernel_sock_ip_overhead - returns the IP overhead imposed by a socket
+ *	@sk: socket
+ *
+ *	This routine returns the IP overhead imposed by a socket i.e.
+ *	the length of the underlying IP header, depending on whether
+ *	this is an IPv4 or IPv6 socket and the length from IP options turned
+ *	on at the socket. Assumes that the caller has a lock on the socket.
  */
+
 u32 kernel_sock_ip_overhead(struct sock *sk)
 {
 	struct inet_sock *inet;
diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index da1a676860ca..fa6c977b4c41 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -140,13 +140,11 @@ static int __strp_recv(read_descriptor_t *desc, struct sk_buff *orig_skb,
 			/* We are going to append to the frags_list of head.
 			 * Need to unshare the frag_list.
 			 */
-			if (skb_has_frag_list(head)) {
-				err = skb_unclone(head, GFP_ATOMIC);
-				if (err) {
-					STRP_STATS_INCR(strp->stats.mem_fail);
-					desc->error = err;
-					return 0;
-				}
+			err = skb_unclone(head, GFP_ATOMIC);
+			if (err) {
+				STRP_STATS_INCR(strp->stats.mem_fail);
+				desc->error = err;
+				return 0;
 			}
 
 			if (unlikely(skb_shinfo(head)->frag_list)) {
@@ -550,6 +548,8 @@ EXPORT_SYMBOL_GPL(strp_check_rcv);
 static int __init strp_mod_init(void)
 {
 	strp_wq = create_singlethread_workqueue("kstrp");
+	if (unlikely(!strp_wq))
+		return -ENOMEM;
 
 	return 0;
 }
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 12bb23b8e0c5..261131dfa1f1 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -54,6 +54,7 @@ static void cache_init(struct cache_head *h, struct cache_detail *detail)
 	h->last_refresh = now;
 }
 
+static inline int cache_is_valid(struct cache_head *h);
 static void cache_fresh_locked(struct cache_head *head, time_t expiry,
 				struct cache_detail *detail);
 static void cache_fresh_unlocked(struct cache_head *head,
@@ -105,6 +106,8 @@ static struct cache_head *sunrpc_cache_add_entry(struct cache_detail *detail,
 			if (cache_is_expired(detail, tmp)) {
 				hlist_del_init_rcu(&tmp->cache_list);
 				detail->entries --;
+				if (cache_is_valid(tmp) == -EAGAIN)
+					set_bit(CACHE_NEGATIVE, &tmp->flags);
 				cache_fresh_locked(tmp, 0, detail);
 				freeme = tmp;
 				break;
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 228970e6e52b..8ff11dc98d7f 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1540,7 +1540,6 @@ call_start(struct rpc_task *task)
 	clnt->cl_stats->rpccnt++;
 	task->tk_action = call_reserve;
 	rpc_task_set_transport(task, clnt);
-	call_reserve(task);
 }
 
 /*
@@ -1554,9 +1553,6 @@ call_reserve(struct rpc_task *task)
 	task->tk_status  = 0;
 	task->tk_action  = call_reserveresult;
 	xprt_reserve(task);
-	if (rpc_task_need_resched(task))
-		return;
-	 call_reserveresult(task);
 }
 
 static void call_retry_reserve(struct rpc_task *task);
@@ -1579,7 +1575,6 @@ call_reserveresult(struct rpc_task *task)
 	if (status >= 0) {
 		if (task->tk_rqstp) {
 			task->tk_action = call_refresh;
-			call_refresh(task);
 			return;
 		}
 
@@ -1605,7 +1600,6 @@ call_reserveresult(struct rpc_task *task)
 		/* fall through */
 	case -EAGAIN:	/* woken up; retry */
 		task->tk_action = call_retry_reserve;
-		call_retry_reserve(task);
 		return;
 	case -EIO:	/* probably a shutdown */
 		break;
@@ -1628,9 +1622,6 @@ call_retry_reserve(struct rpc_task *task)
 	task->tk_status  = 0;
 	task->tk_action  = call_reserveresult;
 	xprt_retry_reserve(task);
-	if (rpc_task_need_resched(task))
-		return;
-	call_reserveresult(task);
 }
 
 /*
@@ -1645,9 +1636,6 @@ call_refresh(struct rpc_task *task)
 	task->tk_status = 0;
 	task->tk_client->cl_stats->rpcauthrefresh++;
 	rpcauth_refreshcred(task);
-	if (rpc_task_need_resched(task))
-		return;
-	call_refreshresult(task);
 }
 
 /*
@@ -1666,7 +1654,6 @@ call_refreshresult(struct rpc_task *task)
 	case 0:
 		if (rpcauth_uptodatecred(task)) {
 			task->tk_action = call_allocate;
-			call_allocate(task);
 			return;
 		}
 		/* Use rate-limiting and a max number of retries if refresh
@@ -1685,7 +1672,6 @@ call_refreshresult(struct rpc_task *task)
 		task->tk_cred_retry--;
 		dprintk("RPC: %5u %s: retry refresh creds\n",
 				task->tk_pid, __func__);
-		call_refresh(task);
 		return;
 	}
 	dprintk("RPC: %5u %s: refresh creds failed with error %d\n",
@@ -1711,10 +1697,8 @@ call_allocate(struct rpc_task *task)
 	task->tk_status = 0;
 	task->tk_action = call_encode;
 
-	if (req->rq_buffer) {
-		call_encode(task);
+	if (req->rq_buffer)
 		return;
-	}
 
 	if (proc->p_proc != 0) {
 		BUG_ON(proc->p_arglen == 0);
@@ -1740,12 +1724,8 @@ call_allocate(struct rpc_task *task)
 
 	status = xprt->ops->buf_alloc(task);
 	xprt_inject_disconnect(xprt);
-	if (status == 0) {
-		if (rpc_task_need_resched(task))
-			return;
-		call_encode(task);
+	if (status == 0)
 		return;
-	}
 	if (status != -ENOMEM) {
 		rpc_exit(task, status);
 		return;
@@ -1828,8 +1808,12 @@ call_encode(struct rpc_task *task)
 		xprt_request_enqueue_receive(task);
 	xprt_request_enqueue_transmit(task);
 out:
-	task->tk_action = call_bind;
-	call_bind(task);
+	task->tk_action = call_transmit;
+	/* Check that the connection is OK */
+	if (!xprt_bound(task->tk_xprt))
+		task->tk_action = call_bind;
+	else if (!xprt_connected(task->tk_xprt))
+		task->tk_action = call_connect;
 }
 
 /*
@@ -1847,7 +1831,6 @@ rpc_task_handle_transmitted(struct rpc_task *task)
 {
 	xprt_end_transmit(task);
 	task->tk_action = call_transmit_status;
-	call_transmit_status(task);
 }
 
 /*
@@ -1865,7 +1848,6 @@ call_bind(struct rpc_task *task)
 
 	if (xprt_bound(xprt)) {
 		task->tk_action = call_connect;
-		call_connect(task);
 		return;
 	}
 
@@ -1896,7 +1878,6 @@ call_bind_status(struct rpc_task *task)
 		dprint_status(task);
 		task->tk_status = 0;
 		task->tk_action = call_connect;
-		call_connect(task);
 		return;
 	}
 
@@ -1981,7 +1962,6 @@ call_connect(struct rpc_task *task)
 
 	if (xprt_connected(xprt)) {
 		task->tk_action = call_transmit;
-		call_transmit(task);
 		return;
 	}
 
@@ -2051,7 +2031,6 @@ call_connect_status(struct rpc_task *task)
 	case 0:
 		clnt->cl_stats->netreconn++;
 		task->tk_action = call_transmit;
-		call_transmit(task);
 		return;
 	}
 	rpc_exit(task, status);
@@ -2087,9 +2066,6 @@ call_transmit(struct rpc_task *task)
 		xprt_transmit(task);
 	}
 	xprt_end_transmit(task);
-	if (rpc_task_need_resched(task))
-		return;
-	call_transmit_status(task);
 }
 
 /*
@@ -2105,11 +2081,8 @@ call_transmit_status(struct rpc_task *task)
 	 * test first.
 	 */
 	if (rpc_task_transmitted(task)) {
-		if (task->tk_status == 0)
-			xprt_request_wait_receive(task);
-		if (rpc_task_need_resched(task))
-			return;
-		call_status(task);
+		task->tk_status = 0;
+		xprt_request_wait_receive(task);
 		return;
 	}
 
@@ -2170,7 +2143,6 @@ call_bc_encode(struct rpc_task *task)
 {
 	xprt_request_enqueue_transmit(task);
 	task->tk_action = call_bc_transmit;
-	call_bc_transmit(task);
 }
 
 /*
@@ -2195,6 +2167,9 @@ call_bc_transmit_status(struct rpc_task *task)
 {
 	struct rpc_rqst *req = task->tk_rqstp;
 
+	if (rpc_task_transmitted(task))
+		task->tk_status = 0;
+
 	dprint_status(task);
 
 	switch (task->tk_status) {
@@ -2261,7 +2236,6 @@ call_status(struct rpc_task *task)
 	status = task->tk_status;
 	if (status >= 0) {
 		task->tk_action = call_decode;
-		call_decode(task);
 		return;
 	}
 
@@ -2311,6 +2285,15 @@ out_exit:
 	rpc_exit(task, status);
 }
 
+static bool
+rpc_check_connected(const struct rpc_rqst *req)
+{
+	/* No allocated request or transport? return true */
+	if (!req || !req->rq_xprt)
+		return true;
+	return xprt_connected(req->rq_xprt);
+}
+
 static void
 rpc_check_timeout(struct rpc_task *task)
 {
@@ -2322,10 +2305,11 @@ rpc_check_timeout(struct rpc_task *task)
 	dprintk("RPC: %5u call_timeout (major)\n", task->tk_pid);
 	task->tk_timeouts++;
 
-	if (RPC_IS_SOFTCONN(task)) {
+	if (RPC_IS_SOFTCONN(task) && !rpc_check_connected(task->tk_rqstp)) {
 		rpc_exit(task, -ETIMEDOUT);
 		return;
 	}
+
 	if (RPC_IS_SOFT(task)) {
 		if (clnt->cl_chatty) {
 			printk(KERN_NOTICE "%s: server %s not responding, timed out\n",
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 89a63391d4d4..30cfc0efe699 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -90,7 +90,7 @@ static void rpcrdma_xprt_drain(struct rpcrdma_xprt *r_xprt)
 	/* Flush Receives, then wait for deferred Reply work
 	 * to complete.
 	 */
-	ib_drain_qp(ia->ri_id->qp);
+	ib_drain_rq(ia->ri_id->qp);
 	drain_workqueue(buf->rb_completion_wq);
 
 	/* Deferred Reply processing might have scheduled
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 9359539907ba..732d4b57411a 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -495,8 +495,8 @@ xs_read_stream_request(struct sock_xprt *transport, struct msghdr *msg,
 		int flags, struct rpc_rqst *req)
 {
 	struct xdr_buf *buf = &req->rq_private_buf;
-	size_t want, read;
-	ssize_t ret;
+	size_t want, uninitialized_var(read);
+	ssize_t uninitialized_var(ret);
 
 	xs_read_header(transport, buf);
 
diff --git a/net/tipc/group.c b/net/tipc/group.c
index 06fee142f09f..63f39201e41e 100644
--- a/net/tipc/group.c
+++ b/net/tipc/group.c
@@ -919,6 +919,9 @@ int tipc_group_fill_sock_diag(struct tipc_group *grp, struct sk_buff *skb)
 {
 	struct nlattr *group = nla_nest_start(skb, TIPC_NLA_SOCK_GROUP);
 
+	if (!group)
+		return -EMSGSIZE;
+
 	if (nla_put_u32(skb, TIPC_NLA_SOCK_GROUP_ID,
 			grp->type) ||
 	    nla_put_u32(skb, TIPC_NLA_SOCK_GROUP_INSTANCE,
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 341ecd796aa4..131aa2f0fd27 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -869,6 +869,8 @@ void tipc_link_reset(struct tipc_link *l)
 	__skb_queue_head_init(&list);
 
 	l->in_session = false;
+	/* Force re-synch of peer session number before establishing */
+	l->peer_session--;
 	l->session++;
 	l->mtu = l->advertised_mtu;
 
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index bff241f03525..89993afe0fbd 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -909,7 +909,8 @@ static int tipc_nl_service_list(struct net *net, struct tipc_nl_msg *msg,
 	for (; i < TIPC_NAMETBL_SIZE; i++) {
 		head = &tn->nametbl->services[i];
 
-		if (*last_type) {
+		if (*last_type ||
+		    (!i && *last_key && (*last_lower == *last_key))) {
 			service = tipc_service_find(net, *last_type);
 			if (!service)
 				return -EPIPE;
diff --git a/net/tipc/net.c b/net/tipc/net.c
index f076edb74338..7ce1e86b024f 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -163,12 +163,9 @@ void tipc_sched_net_finalize(struct net *net, u32 addr)
 
 void tipc_net_stop(struct net *net)
 {
-	u32 self = tipc_own_addr(net);
-
-	if (!self)
+	if (!tipc_own_id(net))
 		return;
 
-	tipc_nametbl_withdraw(net, TIPC_CFG_SRV, self, self, self);
 	rtnl_lock();
 	tipc_bearer_stop(net);
 	tipc_node_stop(net);
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index 4ad3586da8f0..340a6e7c43a7 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -267,8 +267,14 @@ static int tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd,
 	if (msg->rep_type)
 		tipc_tlv_init(msg->rep, msg->rep_type);
 
-	if (cmd->header)
-		(*cmd->header)(msg);
+	if (cmd->header) {
+		err = (*cmd->header)(msg);
+		if (err) {
+			kfree_skb(msg->rep);
+			msg->rep = NULL;
+			return err;
+		}
+	}
 
 	arg = nlmsg_new(0, GFP_KERNEL);
 	if (!arg) {
@@ -397,7 +403,12 @@ static int tipc_nl_compat_bearer_enable(struct tipc_nl_compat_cmd_doit *cmd,
 	if (!bearer)
 		return -EMSGSIZE;
 
-	len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_BEARER_NAME);
+	len = TLV_GET_DATA_LEN(msg->req);
+	len -= offsetof(struct tipc_bearer_config, name);
+	if (len <= 0)
+		return -EINVAL;
+
+	len = min_t(int, len, TIPC_MAX_BEARER_NAME);
 	if (!string_is_valid(b->name, len))
 		return -EINVAL;
 
@@ -766,7 +777,12 @@ static int tipc_nl_compat_link_set(struct tipc_nl_compat_cmd_doit *cmd,
 
 	lc = (struct tipc_link_config *)TLV_DATA(msg->req);
 
-	len = min_t(int, TLV_GET_DATA_LEN(msg->req), TIPC_MAX_LINK_NAME);
+	len = TLV_GET_DATA_LEN(msg->req);
+	len -= offsetof(struct tipc_link_config, name);
+	if (len <= 0)
+		return -EINVAL;
+
+	len = min_t(int, len, TIPC_MAX_LINK_NAME);
 	if (!string_is_valid(lc->name, len))
 		return -EINVAL;
 
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 2dc4919ab23c..dd3b6dc17662 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -817,10 +817,10 @@ static void __tipc_node_link_down(struct tipc_node *n, int *bearer_id,
 static void tipc_node_link_down(struct tipc_node *n, int bearer_id, bool delete)
 {
 	struct tipc_link_entry *le = &n->links[bearer_id];
+	struct tipc_media_addr *maddr = NULL;
 	struct tipc_link *l = le->link;
-	struct tipc_media_addr *maddr;
-	struct sk_buff_head xmitq;
 	int old_bearer_id = bearer_id;
+	struct sk_buff_head xmitq;
 
 	if (!l)
 		return;
@@ -844,7 +844,8 @@ static void tipc_node_link_down(struct tipc_node *n, int bearer_id, bool delete)
 	tipc_node_write_unlock(n);
 	if (delete)
 		tipc_mon_remove_peer(n->net, n->addr, old_bearer_id);
-	tipc_bearer_xmit(n->net, bearer_id, &xmitq, maddr);
+	if (!skb_queue_empty(&xmitq))
+		tipc_bearer_xmit(n->net, bearer_id, &xmitq, maddr);
 	tipc_sk_rcv(n->net, &le->inputq);
 }
 
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 3274ef625dba..b542f14ed444 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2349,6 +2349,16 @@ static int tipc_wait_for_connect(struct socket *sock, long *timeo_p)
 	return 0;
 }
 
+static bool tipc_sockaddr_is_sane(struct sockaddr_tipc *addr)
+{
+	if (addr->family != AF_TIPC)
+		return false;
+	if (addr->addrtype == TIPC_SERVICE_RANGE)
+		return (addr->addr.nameseq.lower <= addr->addr.nameseq.upper);
+	return (addr->addrtype == TIPC_SERVICE_ADDR ||
+		addr->addrtype == TIPC_SOCKET_ADDR);
+}
+
 /**
  * tipc_connect - establish a connection to another TIPC port
  * @sock: socket structure
@@ -2384,18 +2394,18 @@ static int tipc_connect(struct socket *sock, struct sockaddr *dest,
 		if (!tipc_sk_type_connectionless(sk))
 			res = -EINVAL;
 		goto exit;
-	} else if (dst->family != AF_TIPC) {
-		res = -EINVAL;
 	}
-	if (dst->addrtype != TIPC_ADDR_ID && dst->addrtype != TIPC_ADDR_NAME)
+	if (!tipc_sockaddr_is_sane(dst)) {
 		res = -EINVAL;
-	if (res)
 		goto exit;
-
+	}
 	/* DGRAM/RDM connect(), just save the destaddr */
 	if (tipc_sk_type_connectionless(sk)) {
 		memcpy(&tsk->peer, dest, destlen);
 		goto exit;
+	} else if (dst->addrtype == TIPC_SERVICE_RANGE) {
+		res = -EINVAL;
+		goto exit;
 	}
 
 	previous = sk->sk_state;
@@ -3255,6 +3265,8 @@ static int __tipc_nl_add_sk_con(struct sk_buff *skb, struct tipc_sock *tsk)
 	peer_port = tsk_peer_port(tsk);
 
 	nest = nla_nest_start(skb, TIPC_NLA_SOCK_CON);
+	if (!nest)
+		return -EMSGSIZE;
 
 	if (nla_put_u32(skb, TIPC_NLA_CON_NODE, peer_node))
 		goto msg_full;
diff --git a/net/tipc/sysctl.c b/net/tipc/sysctl.c
index 3481e4906bd6..9df82a573aa7 100644
--- a/net/tipc/sysctl.c
+++ b/net/tipc/sysctl.c
@@ -38,6 +38,8 @@
 
 #include <linux/sysctl.h>
 
+static int zero;
+static int one = 1;
 static struct ctl_table_header *tipc_ctl_hdr;
 
 static struct ctl_table tipc_table[] = {
@@ -46,14 +48,16 @@ static struct ctl_table tipc_table[] = {
 		.data		= &sysctl_tipc_rmem,
 		.maxlen		= sizeof(sysctl_tipc_rmem),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1         = &one,
 	},
 	{
 		.procname	= "named_timeout",
 		.data		= &sysctl_tipc_named_timeout,
 		.maxlen		= sizeof(sysctl_tipc_named_timeout),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1         = &zero,
 	},
 	{
 		.procname       = "sk_filter",
diff --git a/net/tipc/topsrv.c b/net/tipc/topsrv.c
index 4a708a4e8583..b45932d78004 100644
--- a/net/tipc/topsrv.c
+++ b/net/tipc/topsrv.c
@@ -363,6 +363,7 @@ static int tipc_conn_rcv_sub(struct tipc_topsrv *srv,
 	struct tipc_subscription *sub;
 
 	if (tipc_sub_read(s, filter) & TIPC_SUB_CANCEL) {
+		s->filter &= __constant_ntohl(~TIPC_SUB_CANCEL);
 		tipc_conn_delete_sub(con, s);
 		return 0;
 	}
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index 135a7ee9db03..14dedb24fa7b 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -52,8 +52,11 @@ static DEFINE_SPINLOCK(tls_device_lock);
 
 static void tls_device_free_ctx(struct tls_context *ctx)
 {
-	if (ctx->tx_conf == TLS_HW)
+	if (ctx->tx_conf == TLS_HW) {
 		kfree(tls_offload_ctx_tx(ctx));
+		kfree(ctx->tx.rec_seq);
+		kfree(ctx->tx.iv);
+	}
 
 	if (ctx->rx_conf == TLS_HW)
 		kfree(tls_offload_ctx_rx(ctx));
@@ -216,6 +219,13 @@ void tls_device_sk_destruct(struct sock *sk)
 }
 EXPORT_SYMBOL(tls_device_sk_destruct);
 
+void tls_device_free_resources_tx(struct sock *sk)
+{
+	struct tls_context *tls_ctx = tls_get_ctx(sk);
+
+	tls_free_partial_record(sk, tls_ctx);
+}
+
 static void tls_append_frag(struct tls_record_info *record,
 			    struct page_frag *pfrag,
 			    int size)
@@ -587,7 +597,7 @@ void handle_device_resync(struct sock *sk, u32 seq, u64 rcd_sn)
 static int tls_device_reencrypt(struct sock *sk, struct sk_buff *skb)
 {
 	struct strp_msg *rxm = strp_msg(skb);
-	int err = 0, offset = rxm->offset, copy, nsg;
+	int err = 0, offset = rxm->offset, copy, nsg, data_len, pos;
 	struct sk_buff *skb_iter, *unused;
 	struct scatterlist sg[1];
 	char *orig_buf, *buf;
@@ -618,25 +628,42 @@ static int tls_device_reencrypt(struct sock *sk, struct sk_buff *skb)
 	else
 		err = 0;
 
-	copy = min_t(int, skb_pagelen(skb) - offset,
-		     rxm->full_len - TLS_CIPHER_AES_GCM_128_TAG_SIZE);
+	data_len = rxm->full_len - TLS_CIPHER_AES_GCM_128_TAG_SIZE;
 
-	if (skb->decrypted)
-		skb_store_bits(skb, offset, buf, copy);
+	if (skb_pagelen(skb) > offset) {
+		copy = min_t(int, skb_pagelen(skb) - offset, data_len);
 
-	offset += copy;
-	buf += copy;
+		if (skb->decrypted)
+			skb_store_bits(skb, offset, buf, copy);
+
+		offset += copy;
+		buf += copy;
+	}
 
+	pos = skb_pagelen(skb);
 	skb_walk_frags(skb, skb_iter) {
-		copy = min_t(int, skb_iter->len,
-			     rxm->full_len - offset + rxm->offset -
-			     TLS_CIPHER_AES_GCM_128_TAG_SIZE);
+		int frag_pos;
+
+		/* Practically all frags must belong to msg if reencrypt
+		 * is needed with current strparser and coalescing logic,
+		 * but strparser may "get optimized", so let's be safe.
+		 */
+		if (pos + skb_iter->len <= offset)
+			goto done_with_frag;
+		if (pos >= data_len + rxm->offset)
+			break;
+
+		frag_pos = offset - pos;
+		copy = min_t(int, skb_iter->len - frag_pos,
+			     data_len + rxm->offset - offset);
 
 		if (skb_iter->decrypted)
-			skb_store_bits(skb_iter, offset, buf, copy);
+			skb_store_bits(skb_iter, frag_pos, buf, copy);
 
 		offset += copy;
 		buf += copy;
+done_with_frag:
+		pos += skb_iter->len;
 	}
 
 free_buf:
@@ -894,7 +921,9 @@ int tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx)
 	goto release_netdev;
 
 free_sw_resources:
+	up_read(&device_offload_lock);
 	tls_sw_free_resources_rx(sk);
+	down_read(&device_offload_lock);
 release_ctx:
 	ctx->priv_ctx_rx = NULL;
 release_netdev:
@@ -929,8 +958,6 @@ void tls_device_offload_cleanup_rx(struct sock *sk)
 	}
 out:
 	up_read(&device_offload_lock);
-	kfree(tls_ctx->rx.rec_seq);
-	kfree(tls_ctx->rx.iv);
 	tls_sw_release_resources_rx(sk);
 }
 
diff --git a/net/tls/tls_device_fallback.c b/net/tls/tls_device_fallback.c
index 54c3a758f2a7..c3a5fe624b4e 100644
--- a/net/tls/tls_device_fallback.c
+++ b/net/tls/tls_device_fallback.c
@@ -194,18 +194,26 @@ static void update_chksum(struct sk_buff *skb, int headln)
 
 static void complete_skb(struct sk_buff *nskb, struct sk_buff *skb, int headln)
 {
+	struct sock *sk = skb->sk;
+	int delta;
+
 	skb_copy_header(nskb, skb);
 
 	skb_put(nskb, skb->len);
 	memcpy(nskb->data, skb->data, headln);
-	update_chksum(nskb, headln);
 
 	nskb->destructor = skb->destructor;
-	nskb->sk = skb->sk;
+	nskb->sk = sk;
 	skb->destructor = NULL;
 	skb->sk = NULL;
-	refcount_add(nskb->truesize - skb->truesize,
-		     &nskb->sk->sk_wmem_alloc);
+
+	update_chksum(nskb, headln);
+
+	delta = nskb->truesize - skb->truesize;
+	if (likely(delta < 0))
+		WARN_ON_ONCE(refcount_sub_and_test(-delta, &sk->sk_wmem_alloc));
+	else if (delta)
+		refcount_add(delta, &sk->sk_wmem_alloc);
 }
 
 /* This function may be called after the user socket is already
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index df921a2904b9..478603f43964 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -208,6 +208,26 @@ int tls_push_partial_record(struct sock *sk, struct tls_context *ctx,
 	return tls_push_sg(sk, ctx, sg, offset, flags);
 }
 
+bool tls_free_partial_record(struct sock *sk, struct tls_context *ctx)
+{
+	struct scatterlist *sg;
+
+	sg = ctx->partially_sent_record;
+	if (!sg)
+		return false;
+
+	while (1) {
+		put_page(sg_page(sg));
+		sk_mem_uncharge(sk, sg->length);
+
+		if (sg_is_last(sg))
+			break;
+		sg++;
+	}
+	ctx->partially_sent_record = NULL;
+	return true;
+}
+
 static void tls_write_space(struct sock *sk)
 {
 	struct tls_context *ctx = tls_get_ctx(sk);
@@ -267,13 +287,14 @@ static void tls_sk_proto_close(struct sock *sk, long timeout)
 		kfree(ctx->tx.rec_seq);
 		kfree(ctx->tx.iv);
 		tls_sw_free_resources_tx(sk);
+#ifdef CONFIG_TLS_DEVICE
+	} else if (ctx->tx_conf == TLS_HW) {
+		tls_device_free_resources_tx(sk);
+#endif
 	}
 
-	if (ctx->rx_conf == TLS_SW) {
-		kfree(ctx->rx.rec_seq);
-		kfree(ctx->rx.iv);
+	if (ctx->rx_conf == TLS_SW)
 		tls_sw_free_resources_rx(sk);
-	}
 
 #ifdef CONFIG_TLS_DEVICE
 	if (ctx->rx_conf == TLS_HW)
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 425351ac2a9b..29d6af43dd24 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -1484,6 +1484,8 @@ static int decrypt_skb_update(struct sock *sk, struct sk_buff *skb,
 
 				return err;
 			}
+		} else {
+			*zc = false;
 		}
 
 		rxm->full_len -= padding_length(ctx, tls_ctx, skb);
@@ -2050,20 +2052,7 @@ void tls_sw_free_resources_tx(struct sock *sk)
 	/* Free up un-sent records in tx_list. First, free
 	 * the partially sent record if any at head of tx_list.
 	 */
-	if (tls_ctx->partially_sent_record) {
-		struct scatterlist *sg = tls_ctx->partially_sent_record;
-
-		while (1) {
-			put_page(sg_page(sg));
-			sk_mem_uncharge(sk, sg->length);
-
-			if (sg_is_last(sg))
-				break;
-			sg++;
-		}
-
-		tls_ctx->partially_sent_record = NULL;
-
+	if (tls_free_partial_record(sk, tls_ctx)) {
 		rec = list_first_entry(&ctx->tx_list,
 				       struct tls_rec, list);
 		list_del(&rec->list);
@@ -2089,6 +2078,9 @@ void tls_sw_release_resources_rx(struct sock *sk)
 	struct tls_context *tls_ctx = tls_get_ctx(sk);
 	struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
 
+	kfree(tls_ctx->rx.rec_seq);
+	kfree(tls_ctx->rx.iv);
+
 	if (ctx->aead_recv) {
 		kfree_skb(ctx->recv_pkt);
 		ctx->recv_pkt = NULL;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 25a9e3b5c154..47e30a58566c 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -13650,7 +13650,8 @@ static const struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_UNS_ADMIN_PERM,
 		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
-				  NL80211_FLAG_NEED_RTNL,
+				  NL80211_FLAG_NEED_RTNL |
+				  NL80211_FLAG_CLEAR_SKB,
 	},
 	{
 		.cmd = NL80211_CMD_DEAUTHENTICATE,
@@ -13701,7 +13702,8 @@ static const struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_UNS_ADMIN_PERM,
 		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
-				  NL80211_FLAG_NEED_RTNL,
+				  NL80211_FLAG_NEED_RTNL |
+				  NL80211_FLAG_CLEAR_SKB,
 	},
 	{
 		.cmd = NL80211_CMD_UPDATE_CONNECT_PARAMS,
@@ -13709,7 +13711,8 @@ static const struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_ADMIN_PERM,
 		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
-				  NL80211_FLAG_NEED_RTNL,
+				  NL80211_FLAG_NEED_RTNL |
+				  NL80211_FLAG_CLEAR_SKB,
 	},
 	{
 		.cmd = NL80211_CMD_DISCONNECT,
@@ -13738,7 +13741,8 @@ static const struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_UNS_ADMIN_PERM,
 		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
-				  NL80211_FLAG_NEED_RTNL,
+				  NL80211_FLAG_NEED_RTNL |
+				  NL80211_FLAG_CLEAR_SKB,
 	},
 	{
 		.cmd = NL80211_CMD_DEL_PMKSA,
@@ -14090,7 +14094,8 @@ static const struct genl_ops nl80211_ops[] = {
 		.policy = nl80211_policy,
 		.flags = GENL_UNS_ADMIN_PERM,
 		.internal_flags = NL80211_FLAG_NEED_WIPHY |
-				  NL80211_FLAG_NEED_RTNL,
+				  NL80211_FLAG_NEED_RTNL |
+				  NL80211_FLAG_CLEAR_SKB,
 	},
 	{
 		.cmd = NL80211_CMD_SET_QOS_MAP,
@@ -14145,7 +14150,8 @@ static const struct genl_ops nl80211_ops[] = {
 		.doit = nl80211_set_pmk,
 		.policy = nl80211_policy,
 		.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
-				  NL80211_FLAG_NEED_RTNL,
+				  NL80211_FLAG_NEED_RTNL |
+				  NL80211_FLAG_CLEAR_SKB,
 	},
 	{
 		.cmd = NL80211_CMD_DEL_PMK,
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 2f1bf91eb226..a6fd5ce199da 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1309,6 +1309,16 @@ reg_intersect_dfs_region(const enum nl80211_dfs_regions dfs_region1,
 	return dfs_region1;
 }
 
+static void reg_wmm_rules_intersect(const struct ieee80211_wmm_ac *wmm_ac1,
+				    const struct ieee80211_wmm_ac *wmm_ac2,
+				    struct ieee80211_wmm_ac *intersect)
+{
+	intersect->cw_min = max_t(u16, wmm_ac1->cw_min, wmm_ac2->cw_min);
+	intersect->cw_max = max_t(u16, wmm_ac1->cw_max, wmm_ac2->cw_max);
+	intersect->cot = min_t(u16, wmm_ac1->cot, wmm_ac2->cot);
+	intersect->aifsn = max_t(u8, wmm_ac1->aifsn, wmm_ac2->aifsn);
+}
+
 /*
  * Helper for regdom_intersect(), this does the real
  * mathematical intersection fun
@@ -1323,6 +1333,8 @@ static int reg_rules_intersect(const struct ieee80211_regdomain *rd1,
 	struct ieee80211_freq_range *freq_range;
 	const struct ieee80211_power_rule *power_rule1, *power_rule2;
 	struct ieee80211_power_rule *power_rule;
+	const struct ieee80211_wmm_rule *wmm_rule1, *wmm_rule2;
+	struct ieee80211_wmm_rule *wmm_rule;
 	u32 freq_diff, max_bandwidth1, max_bandwidth2;
 
 	freq_range1 = &rule1->freq_range;
@@ -1333,6 +1345,10 @@ static int reg_rules_intersect(const struct ieee80211_regdomain *rd1,
 	power_rule2 = &rule2->power_rule;
 	power_rule = &intersected_rule->power_rule;
 
+	wmm_rule1 = &rule1->wmm_rule;
+	wmm_rule2 = &rule2->wmm_rule;
+	wmm_rule = &intersected_rule->wmm_rule;
+
 	freq_range->start_freq_khz = max(freq_range1->start_freq_khz,
 					 freq_range2->start_freq_khz);
 	freq_range->end_freq_khz = min(freq_range1->end_freq_khz,
@@ -1376,6 +1392,29 @@ static int reg_rules_intersect(const struct ieee80211_regdomain *rd1,
 	intersected_rule->dfs_cac_ms = max(rule1->dfs_cac_ms,
 					   rule2->dfs_cac_ms);
 
+	if (rule1->has_wmm && rule2->has_wmm) {
+		u8 ac;
+
+		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+			reg_wmm_rules_intersect(&wmm_rule1->client[ac],
+						&wmm_rule2->client[ac],
+						&wmm_rule->client[ac]);
+			reg_wmm_rules_intersect(&wmm_rule1->ap[ac],
+						&wmm_rule2->ap[ac],
+						&wmm_rule->ap[ac]);
+		}
+
+		intersected_rule->has_wmm = true;
+	} else if (rule1->has_wmm) {
+		*wmm_rule = *wmm_rule1;
+		intersected_rule->has_wmm = true;
+	} else if (rule2->has_wmm) {
+		*wmm_rule = *wmm_rule2;
+		intersected_rule->has_wmm = true;
+	} else {
+		intersected_rule->has_wmm = false;
+	}
+
 	if (!is_valid_reg_rule(intersected_rule))
 		return -EINVAL;
 
@@ -3739,10 +3778,9 @@ void wiphy_regulatory_register(struct wiphy *wiphy)
 		/*
 		 * The last request may have been received before this
 		 * registration call. Call the driver notifier if
-		 * initiator is USER and user type is CELL_BASE.
+		 * initiator is USER.
 		 */
-		if (lr->initiator == NL80211_REGDOM_SET_BY_USER &&
-		    lr->user_reg_hint_type == NL80211_USER_REG_HINT_CELL_BASE)
+		if (lr->initiator == NL80211_REGDOM_SET_BY_USER)
 			reg_call_notifier(wiphy, lr);
 	}
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 287518c6caa4..04d888628f29 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -190,10 +190,9 @@ static size_t cfg80211_gen_new_ie(const u8 *ie, size_t ielen,
 	/* copy subelement as we need to change its content to
 	 * mark an ie after it is processed.
 	 */
-	sub_copy = kmalloc(subie_len, gfp);
+	sub_copy = kmemdup(subelement, subie_len, gfp);
 	if (!sub_copy)
 		return 0;
-	memcpy(sub_copy, subelement, subie_len);
 
 	pos = &new_ie[0];
 
diff --git a/net/wireless/util.c b/net/wireless/util.c
index e4b8db5e81ec..75899b62bdc9 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1220,9 +1220,11 @@ static u32 cfg80211_calculate_bitrate_he(struct rate_info *rate)
 	else if (rate->bw == RATE_INFO_BW_HE_RU &&
 		 rate->he_ru_alloc == NL80211_RATE_INFO_HE_RU_ALLOC_26)
 		result = rates_26[rate->he_gi];
-	else if (WARN(1, "invalid HE MCS: bw:%d, ru:%d\n",
-		      rate->bw, rate->he_ru_alloc))
+	else {
+		WARN(1, "invalid HE MCS: bw:%d, ru:%d\n",
+		     rate->bw, rate->he_ru_alloc);
 		return 0;
+	}
 
 	/* now scale to the appropriate MCS */
 	tmp = result;
diff --git a/net/xdp/xdp_umem.c b/net/xdp/xdp_umem.c
index 77520eacee8f..989e52386c35 100644
--- a/net/xdp/xdp_umem.c
+++ b/net/xdp/xdp_umem.c
@@ -193,9 +193,6 @@ static void xdp_umem_unaccount_pages(struct xdp_umem *umem)
 
 static void xdp_umem_release(struct xdp_umem *umem)
 {
-	struct task_struct *task;
-	struct mm_struct *mm;
-
 	xdp_umem_clear_dev(umem);
 
 	ida_simple_remove(&umem_ida, umem->id);
@@ -214,21 +211,10 @@ static void xdp_umem_release(struct xdp_umem *umem)
 
 	xdp_umem_unpin_pages(umem);
 
-	task = get_pid_task(umem->pid, PIDTYPE_PID);
-	put_pid(umem->pid);
-	if (!task)
-		goto out;
-	mm = get_task_mm(task);
-	put_task_struct(task);
-	if (!mm)
-		goto out;
-
-	mmput(mm);
 	kfree(umem->pages);
 	umem->pages = NULL;
 
 	xdp_umem_unaccount_pages(umem);
-out:
 	kfree(umem);
 }
 
@@ -357,7 +343,6 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr)
 	if (size_chk < 0)
 		return -EINVAL;
 
-	umem->pid = get_task_pid(current, PIDTYPE_PID);
 	umem->address = (unsigned long)addr;
 	umem->chunk_mask = ~((u64)chunk_size - 1);
 	umem->size = size;
@@ -373,7 +358,7 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr)
 
 	err = xdp_umem_account_pages(umem);
 	if (err)
-		goto out;
+		return err;
 
 	err = xdp_umem_pin_pages(umem);
 	if (err)
@@ -392,8 +377,6 @@ static int xdp_umem_reg(struct xdp_umem *umem, struct xdp_umem_reg *mr)
 
 out_account:
 	xdp_umem_unaccount_pages(umem);
-out:
-	put_pid(umem->pid);
 	return err;
 }
 
diff --git a/net/xfrm/xfrm_interface.c b/net/xfrm/xfrm_interface.c
index dbb3c1945b5c..85fec98676d3 100644
--- a/net/xfrm/xfrm_interface.c
+++ b/net/xfrm/xfrm_interface.c
@@ -70,17 +70,28 @@ static struct xfrm_if *xfrmi_lookup(struct net *net, struct xfrm_state *x)
 	return NULL;
 }
 
-static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb)
+static struct xfrm_if *xfrmi_decode_session(struct sk_buff *skb,
+					    unsigned short family)
 {
 	struct xfrmi_net *xfrmn;
-	int ifindex;
 	struct xfrm_if *xi;
+	int ifindex = 0;
 
 	if (!secpath_exists(skb) || !skb->dev)
 		return NULL;
 
+	switch (family) {
+	case AF_INET6:
+		ifindex = inet6_sdif(skb);
+		break;
+	case AF_INET:
+		ifindex = inet_sdif(skb);
+		break;
+	}
+	if (!ifindex)
+		ifindex = skb->dev->ifindex;
+
 	xfrmn = net_generic(xs_net(xfrm_input_state(skb)), xfrmi_net_id);
-	ifindex = skb->dev->ifindex;
 
 	for_each_xfrmi_rcu(xfrmn->xfrmi[0], xi) {
 		if (ifindex == xi->dev->ifindex &&
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index 8d1a898d0ba5..a6b58df7a70f 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -3313,7 +3313,7 @@ int __xfrm_policy_check(struct sock *sk, int dir, struct sk_buff *skb,
 	ifcb = xfrm_if_get_cb();
 
 	if (ifcb) {
-		xi = ifcb->decode_session(skb);
+		xi = ifcb->decode_session(skb, family);
 		if (xi) {
 			if_id = xi->p.if_id;
 			net = xi->net;
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 1bb971f46fc6..178baaa037e5 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2384,7 +2384,7 @@ void xfrm_state_fini(struct net *net)
 
 	flush_work(&net->xfrm.state_hash_work);
 	flush_work(&xfrm_state_gc_work);
-	xfrm_state_flush(net, IPSEC_PROTO_ANY, false, true);
+	xfrm_state_flush(net, 0, false, true);
 
 	WARN_ON(!list_empty(&net->xfrm.state_all));
 
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index a131f9ff979e..6916931b1de1 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -1424,7 +1424,7 @@ static int verify_newpolicy_info(struct xfrm_userpolicy_info *p)
 	ret = verify_policy_dir(p->dir);
 	if (ret)
 		return ret;
-	if (p->index && ((p->index & XFRM_POLICY_MAX) != p->dir))
+	if (p->index && (xfrm_policy_id2dir(p->index) != p->dir))
 		return -EINVAL;
 
 	return 0;
@@ -1513,20 +1513,8 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
 			return -EINVAL;
 		}
 
-		switch (ut[i].id.proto) {
-		case IPPROTO_AH:
-		case IPPROTO_ESP:
-		case IPPROTO_COMP:
-#if IS_ENABLED(CONFIG_IPV6)
-		case IPPROTO_ROUTING:
-		case IPPROTO_DSTOPTS:
-#endif
-		case IPSEC_PROTO_ANY:
-			break;
-		default:
+		if (!xfrm_id_proto_valid(ut[i].id.proto))
 			return -EINVAL;
-		}
-
 	}
 
 	return 0;
author	Takashi Iwai <tiwai@suse.de>	2019-05-06 16:14:09 +0200
committer	Takashi Iwai <tiwai@suse.de>	2019-05-06 16:14:34 +0200
commit	d81645510ce2a140816c4cb37c45b78d810ca63f (patch)
tree	edd9464900904d22a23da362bb152669480c5d26 /net
parent	2854cd34fbab5f28a356d3667c26b7856a7b73e2 (diff)
parent	378d590c494551a68a824b939c711bb9a280e9ef (diff)