netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR
mainline inclusion from mainline-v6.5-rc4 commit 0a771f7b category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I7YIXO CVE: CVE-2022-40982 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0a771f7b266b02d262900c75f1e175c7fe76fec2 --------------------------- On error when building the rule, the immediate expression unbinds the chain, hence objects can be deactivated by the transaction records. Otherwise, it is possible to trigger the following warning: WARNING: CPU: 3 PID: 915 at net/netfilter/nf_tables_api.c:2013 nf_tables_chain_destroy+0x1f7/0x210 [nf_tables] CPU: 3 PID: 915 Comm: chain-bind-err- Not tainted 6.1.39 #1 RIP: 0010:nf_tables_chain_destroy+0x1f7/0x210 [nf_tables] Fixes: 4bedf9ee ("netfilter: nf_tables: fix chain binding transaction logic") Reported-by:Kevin Rich <kevinrich1337@gmail.com> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by:
Florian Westphal <fw@strlen.de> conflict: net/netfilter/nft_immediate.c Signed-off-by:
Lu Wei <luwei32@huawei.com>
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