diff options
| author | David S. Miller <davem@davemloft.net> | 2021-06-03 13:49:08 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-03 13:49:08 -0700 |
| commit | 59717f3931f0009a735b4c44daf37b0e2322e989 (patch) | |
| tree | 46f7fe3b7629ddc8db6f4c594d2488459a82b8d4 /net | |
| parent | ab00f3e051e851a8458f0d0eb1bb426deadb6619 (diff) | |
| parent | 8971ee8b087750a23f3cd4dc55bff2d0303fd267 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Do not allow to add conntrack helper extension for confirmed
conntracks in the nf_tables ct expectation support.
2) Fix bogus EBUSY in nfnetlink_cthelper when NFCTH_PRIV_DATA_LEN
is passed on userspace helper updates.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/netfilter/nfnetlink_cthelper.c | 8 | ||||
| -rw-r--r-- | net/netfilter/nft_ct.c | 2 |
2 files changed, 7 insertions, 3 deletions
diff --git a/net/netfilter/nfnetlink_cthelper.c b/net/netfilter/nfnetlink_cthelper.c index 322ac5dd5402..752b10cae524 100644 --- a/net/netfilter/nfnetlink_cthelper.c +++ b/net/netfilter/nfnetlink_cthelper.c @@ -380,10 +380,14 @@ static int nfnl_cthelper_update(const struct nlattr * const tb[], struct nf_conntrack_helper *helper) { + u32 size; int ret; - if (tb[NFCTH_PRIV_DATA_LEN]) - return -EBUSY; + if (tb[NFCTH_PRIV_DATA_LEN]) { + size = ntohl(nla_get_be32(tb[NFCTH_PRIV_DATA_LEN])); + if (size != helper->data_len) + return -EBUSY; + } if (tb[NFCTH_POLICY]) { ret = nfnl_cthelper_update_policy(helper, tb[NFCTH_POLICY]); diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c index 0592a9456084..337e22d8b40b 100644 --- a/net/netfilter/nft_ct.c +++ b/net/netfilter/nft_ct.c @@ -1217,7 +1217,7 @@ static void nft_ct_expect_obj_eval(struct nft_object *obj, struct nf_conn *ct; ct = nf_ct_get(pkt->skb, &ctinfo); - if (!ct || ctinfo == IP_CT_UNTRACKED) { + if (!ct || nf_ct_is_confirmed(ct) || nf_ct_is_template(ct)) { regs->verdict.code = NFT_BREAK; return; } |