From: Phil Oester <kernel@linuxace.com>
Date: Fri, 21 Mar 2008 22:01:50 +0000 (-0700)
Subject: [IPV4]: Fix null dereference in ip_defrag
X-Git-Tag: v2.6.25-rc7~25^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12b101555f4a67db67a66966a516075bd477741f;p=pandora-kernel.git

[IPV4]: Fix null dereference in ip_defrag

Been seeing occasional panics in my testing of 2.6.25-rc in ip_defrag.
Offending line in ip_defrag is here:

	net = skb->dev->nd_net

where dev is NULL.  Bisected the problem down to commit
ac18e7509e7df327e30d6e073a787d922eaf211d ([NETNS][FRAGS]: Make the
inet_frag_queue lookup work in namespaces).

Below patch (idea from Patrick McHardy) fixes the problem for me.

Signed-off-by: Phil Oester <kernel@linuxace.com>
Acked-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

Reading git-diff-tree failed