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netfilter pull request 23-12-20

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Merge tag 'nf-23-12-20' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablu Neira Syuso says:

====================
netfilter pull request 23-12-20

The following patchset contains Netfilter fixes for net:

1) Skip set commit for deleted/destroyed sets, this might trigger
   double deactivation of expired elements.

2) Fix packet mangling from egress, set transport offset from
   mac header for netdev/egress.

Both fixes address bugs already present in several releases.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2023-12-29 07:57:59 +00:00
commit a4255b2e5c
3 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/net/netfilter/nf_tables_ipv4.h
View file

@ -30,7 +30,7 @@ static inline int __nft_set_pktinfo_ipv4_validate(struct nft_pktinfo *pkt)
return -1;
len = iph_totlen(pkt->skb, iph);
thoff = iph->ihl * 4;
thoff = skb_network_offset(pkt->skb) + (iph->ihl * 4);
if (pkt->skb->len < len)
return -1;
else if (len < thoff)

2
net/netfilter/nf_tables_api.c
View file

@ -9887,7 +9887,7 @@ static void nft_set_commit_update(struct list_head *set_update_list)
list_for_each_entry_safe(set, next, set_update_list, pending_update) {
list_del_init(&set->pending_update);
if (!set->ops->commit)
if (!set->ops->commit || set->dead)
continue;
set->ops->commit(set);

2
net/netfilter/nf_tables_core.c
View file

@ -158,7 +158,7 @@ static bool nft_payload_fast_eval(const struct nft_expr *expr,
else {
if (!(pkt->flags & NFT_PKTINFO_L4PROTO))
return false;
ptr = skb_network_header(skb) + nft_thoff(pkt);
ptr = skb->data + nft_thoff(pkt);
}
ptr += priv->offset;