From: Florian Westphal <fw@strlen.de>
Date: Mon, 20 Apr 2015 10:35:47 +0000 (+0200)
Subject: netfilter: bridge: fix NULL deref in physin/out ifindex helpers
X-Git-Tag: omap-for-v4.2/omap1-v2~42^2~24^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=547c4b547e07dcc60874b6ef6252dd49ff74aec1;p=pandora-kernel.git

netfilter: bridge: fix NULL deref in physin/out ifindex helpers

Might not have an outdev yet. We'll oops when iface goes down while skbs
are still nfqueue'd:

RIP: 0010:[<ffffffff81422a2f>]  [<ffffffff81422a2f>] dev_cmp+0x4f/0x80
nfqnl_rcv_dev_event+0xe2/0x150
notifier_call_chain+0x53/0xa0

Fixes: c737b7c4510026 ("netfilter: bridge: add helpers for fetching physin/outdev")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

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