netfilter: ipv6: fix oops when defragmenting locally generated fragments

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[ Upstream commit 61792b6774 ]

Unlike ipv4 and normal ipv6 defrag, netfilter ipv6 defragmentation did
not save/restore skb->dst.

This causes oops when handling locally generated ipv6 fragments, as
output path needs a valid dst.

Reported-by: Maciej Żenczykowski <zenczykowski@gmail.com>
Fixes: 84379c9afe ("netfilter: ipv6: nf_defrag: drop skb dst before queueing")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Florian Westphal 2018-10-23 16:47:16 +02:00 • committed by Greg Kroah-Hartman

parent c2c72619cc

commit 84ed07d957

1 changed files with 9 additions and 4 deletions

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net/ipv6/netfilter/nf_conntrack_reasm.c

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