netfilter: nfnetlink_hook: fix array index out-of-bounds error

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Currently the array net->nf.hooks_ipv6 is accessed by index hook
before hook is sanity checked. Fix this by moving the sanity check
to before the array access.

Addresses-Coverity: ("Out-of-bounds access")
Fixes: e2cf17d377 ("netfilter: add new hook nfnl subsystem")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

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Colin Ian King 2021-06-08 16:34:08 +01:00 • committed by Pablo Neira Ayuso

parent cf6b5ffdce

commit 5302560bb4

1 changed files with 1 additions and 1 deletions

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net/netfilter/nfnetlink_hook.c

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