Davide Ornaghi b30669fdea netfilter: nft_inner: validate mandatory meta and payload
[ Upstream commit c4ab9da85b9df3692f861512fe6c9812f38b7471 ]

Check for mandatory netlink attributes in payload and meta expression
when used embedded from the inner expression, otherwise NULL pointer
dereference is possible from userspace.

Fixes: a150d122b6bd ("netfilter: nft_meta: add inner match support")
Fixes: 3a07327d10a0 ("netfilter: nft_inner: support for inner tunnel header matching")
Signed-off-by: Davide Ornaghi <d.ornaghi97@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-06-21 14:38:34 +02:00
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