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netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain()

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[ Upstream commit 9a4d6dd554b86e65581ef6b6638a39ae079b17ac ]

It seems to me that percpu memory for chain stats started leaking since
commit 3bc158f8d0 ("netfilter: nf_tables: map basechain priority to
hardware priority") when nft_chain_offload_priority() returned an error.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: 3bc158f8d0 ("netfilter: nf_tables: map basechain priority to hardware priority")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tetsuo Handa
2022-09-12 22:58:51 +09:00
committed by Greg Kroah-Hartman
parent 710e3f526b
commit b043a525a3
1 changed files with 1 additions and 0 deletions
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net/netfilter/nf_tables_api.c
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@@ -2045,6 +2045,7 @@ static int nf_tables_addchain(struct nft_ctx *ctx, u8 family, u8 genmask,
if (err < 0) { if (err < 0) {
nft_chain_release_hook(&hook); nft_chain_release_hook(&hook);
kfree(basechain); kfree(basechain);
free_percpu(stats);
return err; return err;
} }
if (stats) if (stats)