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netfilter: nf_tables: Fix a memory leak in nf_tables_updchain
[ Upstream commit 7eaf837 ] If nft_netdev_register_hooks() fails, the memory associated with nft_stats is not freed, causing a memory leak. This patch fixes it by moving nft_stats_alloc() down after nft_netdev_register_hooks() succeeds. Fixes: b9703ed ("netfilter: nf_tables: support for adding new devices to an existing netdev chain") Signed-off-by: Quan Tian <tianquan23@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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