netfilter: nf_tables: disallow binding to already bound chain

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[ Upstream commit e02f0d3970 ]

Update nft_data_init() to report EINVAL if chain is already bound.

Fixes: d0e2c7de92 ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Reported-by: Gwangun Jung <exsociety@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Pablo Neira Ayuso 2022-08-22 11:06:39 +02:00 • committed by Greg Kroah-Hartman

parent 486bfb68d7

commit fdca693fcf

1 changed files with 2 additions and 0 deletions

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net/netfilter/nf_tables_api.c

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