From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 10 Jan 2013 15:12:01 +0000 (+0100)
Subject: netfilter: nf_conntrack: fix BUG_ON while removing nf_conntrack with netns
X-Git-Tag: v3.8-rc6~20^2~57^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e47ee8367babe6a5e8adf44a714c7086657b87e;p=pandora-kernel.git

netfilter: nf_conntrack: fix BUG_ON while removing nf_conntrack with netns

canqun zhang reported that we're hitting BUG_ON in the
nf_conntrack_destroy path when calling kfree_skb while
rmmod'ing the nf_conntrack module.

Currently, the nf_ct_destroy hook is being set to NULL in the
destroy path of conntrack.init_net. However, this is a problem
since init_net may be destroyed before any other existing netns
(we cannot assume any specific ordering while releasing existing
netns according to what I read in recent emails).

Thanks to Gao feng for initial patch to address this issue.

Reported-by: canqun zhang <canqunzhang@gmail.com>
Acked-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---

Reading git-diff-tree failed