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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

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Pablo Neira Ayuso says:

====================
Netfilter fixes for net

1) Release bridge info once packet escapes the br_netfilter path,
   from Florian Westphal.

2) Revert incorrect fix for the SCTP connection tracking chunk
   iterator, also from Florian.

First path fixes a long standing issue, the second path addresses
a mistake in the previous pull request for net.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  Revert "netfilter: conntrack: fix bug in for_each_sctp_chunk"
  netfilter: br_netfilter: disable sabotage_in hook after first suppression
====================

Link: https://lore.kernel.org/r/20230131133158.4052-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2023-01-31 21:19:20 -08:00
commit 64466c407a
2 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
net/bridge/br_netfilter_hooks.c
View File

@ -871,6 +871,7 @@ static unsigned int ip_sabotage_in(void *priv,
if (nf_bridge && !nf_bridge->in_prerouting &&
!netif_is_l3_master(skb->dev) &&
!netif_is_l3_slave(skb->dev)) {
nf_bridge_info_free(skb);
state->okfn(state->net, state->sk, skb);
return NF_STOLEN;
}

5
net/netfilter/nf_conntrack_proto_sctp.c
View File

@ -142,10 +142,11 @@ static void sctp_print_conntrack(struct seq_file *s, struct nf_conn *ct)
}
#endif
/* do_basic_checks ensures sch->length > 0, do not use before */
#define for_each_sctp_chunk(skb, sch, _sch, offset, dataoff, count) \
for ((offset) = (dataoff) + sizeof(struct sctphdr), (count) = 0; \
((sch) = skb_header_pointer((skb), (offset), sizeof(_sch), &(_sch))) && \
(sch)->length; \
(offset) < (skb)->len && \
((sch) = skb_header_pointer((skb), (offset), sizeof(_sch), &(_sch))); \
(offset) += (ntohs((sch)->length) + 3) & ~3, (count)++)
/* Some validity checks to make sure the chunks are fine */