Commit a39007a6 authored by Pablo Neira Ayuso's avatar Pablo Neira Ayuso Committed by Lu Wei
Browse files

netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID

mainline inclusion
from mainline-v6.5-rc4
commit 0ebc1064
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I7QG0U
CVE: CVE-2023-4147

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211



--------------------------------

Bail out with EOPNOTSUPP when adding rule to bound chain via
NFTA_RULE_CHAIN_ID. The following warning splat is shown when
adding a rule to a deleted bound chain:

 WARNING: CPU: 2 PID: 13692 at net/netfilter/nf_tables_api.c:2013 nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]
 CPU: 2 PID: 13692 Comm: chain-bound-rul Not tainted 6.1.39 #1
 RIP: 0010:nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]

Fixes: d0e2c7de ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Reported-by: default avatarKevin Rich <kevinrich1337@gmail.com>
Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: default avatarFlorian Westphal <fw@strlen.de>
Signed-off-by: default avatarLu Wei <luwei32@huawei.com>
parent 33f37873
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