From mboxrd@z Thu Jan  1 00:00:00 1970
From: Florian Westphal <fw@strlen.de>
Subject: Re: v3.10-rc1 regression notice. (bug #818: NULL pointer
 dereference ipt_log_packet+0x2e/0x2b0)
Date: Wed, 15 May 2013 09:43:59 +0200
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Cc: Ronald <ronald645@gmail.com>, netfilter-devel@vger.kernel.org,
	gaofeng@cn.fujitsu.com
To: Hans Schillstrom <hans@schillstrom.com>
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Hans Schillstrom <hans@schillstrom.com> wrote:
> > Since v3.10-rc1 I get kernel panics on two entirely different
> > machines. They seem to be related to netfilter. I posted a bugreport
> > [1], but have not seen any reply.
> 
> a quick look says that both net_device *in and *out is NULL
> Why is another question...

Yes.  Bug added in commit 69b34fb996b2eee3970548cf6eb516d3ecb5eeed
(netfilter: xt_LOG: add net namespace support for xt_LOG)

The oops trace shows we're being invoked from conntrack and not the
ruleset.  Both in and out are NULL in this case.