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authorKalle Valo <kvalo@codeaurora.org>2019-04-28 14:25:33 +0300
committerKalle Valo <kvalo@codeaurora.org>2019-04-28 14:25:33 +0300
commit5c403533fb5f08f0eafcc311e9b86ae127b69c34 (patch)
treecfe6836e56545617b5051dde99210b2fe09105d8
parentb82d6c1f8f8288f744a9dcc16cd3085d535decca (diff)
parentd156e67d3f58c5d3c7ebe1bec80657db534f32d4 (diff)
Merge tag 'iwlwifi-for-kalle-2019-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes
Fourth batch of patches intended for v5.1 * Fix an oops when we receive a packet with bogus lengths; * Fix a bug that prevented 5350 devices from working; * Fix a small merge damage from the previous series;
-rw-r--r--drivers/net/wireless/intel/iwlwifi/cfg/5000.c3
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c6
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c28
3 files changed, 26 insertions, 11 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/5000.c b/drivers/net/wireless/intel/iwlwifi/cfg/5000.c
index 575a7022d045..3846064d51a5 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/5000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/5000.c
@@ -1,7 +1,7 @@
/******************************************************************************
*
* Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
- * Copyright(c) 2018 Intel Corporation
+ * Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@@ -136,6 +136,7 @@ const struct iwl_cfg iwl5350_agn_cfg = {
.ht_params = &iwl5000_ht_params,
.led_mode = IWL_LED_BLINK,
.internal_wimax_coex = true,
+ .csr = &iwl_csr_v1,
};
#define IWL_DEVICE_5150 \
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
index 738eddb2e7ac..6925527d8457 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs-vif.c
@@ -780,12 +780,6 @@ void iwl_mvm_vif_dbgfs_register(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
return;
}
- if (!mvmvif->dbgfs_dir) {
- IWL_ERR(mvm, "Failed to create debugfs directory under %pd\n",
- dbgfs_dir);
- return;
- }
-
if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM &&
((vif->type == NL80211_IFTYPE_STATION && !vif->p2p) ||
(vif->type == NL80211_IFTYPE_STATION && vif->p2p)))
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 1e03acf30762..b516fd1867ec 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -169,9 +169,9 @@ static inline int iwl_mvm_check_pn(struct iwl_mvm *mvm, struct sk_buff *skb,
}
/* iwl_mvm_create_skb Adds the rxb to a new skb */
-static void iwl_mvm_create_skb(struct sk_buff *skb, struct ieee80211_hdr *hdr,
- u16 len, u8 crypt_len,
- struct iwl_rx_cmd_buffer *rxb)
+static int iwl_mvm_create_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
+ struct ieee80211_hdr *hdr, u16 len, u8 crypt_len,
+ struct iwl_rx_cmd_buffer *rxb)
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_rx_mpdu_desc *desc = (void *)pkt->data;
@@ -204,6 +204,20 @@ static void iwl_mvm_create_skb(struct sk_buff *skb, struct ieee80211_hdr *hdr,
* present before copying packet data.
*/
hdrlen += crypt_len;
+
+ if (WARN_ONCE(headlen < hdrlen,
+ "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
+ hdrlen, len, crypt_len)) {
+ /*
+ * We warn and trace because we want to be able to see
+ * it in trace-cmd as well.
+ */
+ IWL_DEBUG_RX(mvm,
+ "invalid packet lengths (hdrlen=%d, len=%d, crypt_len=%d)\n",
+ hdrlen, len, crypt_len);
+ return -EINVAL;
+ }
+
skb_put_data(skb, hdr, hdrlen);
skb_put_data(skb, (u8 *)hdr + hdrlen + pad_len, headlen - hdrlen);
@@ -216,6 +230,8 @@ static void iwl_mvm_create_skb(struct sk_buff *skb, struct ieee80211_hdr *hdr,
skb_add_rx_frag(skb, 0, rxb_steal_page(rxb), offset,
fraglen, rxb->truesize);
}
+
+ return 0;
}
static void iwl_mvm_add_rtap_sniffer_config(struct iwl_mvm *mvm,
@@ -1671,7 +1687,11 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
rx_status->boottime_ns = ktime_get_boot_ns();
}
- iwl_mvm_create_skb(skb, hdr, len, crypt_len, rxb);
+ if (iwl_mvm_create_skb(mvm, skb, hdr, len, crypt_len, rxb)) {
+ kfree_skb(skb);
+ goto out;
+ }
+
if (!iwl_mvm_reorder(mvm, napi, queue, sta, skb, desc))
iwl_mvm_pass_packet_to_mac80211(mvm, napi, skb, queue,
sta, csi);