netdev - Re: NULL pointer dereference in xt_register

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Message-ID: <1346860506.13121.148.camel@edumazet-glaptop>
Date:	Wed, 05 Sep 2012 17:55:06 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Cong Wang <xiyou.wangcong@...il.com>
Cc:	netfilter-devel@...r.kernel.org,
	Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: NULL pointer dereference in xt_register_target()

On Wed, 2012-09-05 at 23:43 +0800, Cong Wang wrote:
> Hi, folks,
> 
> The latest net-next tree can't boot due to a NULL ptr def
> bug in the kernel, the full backtrack is:
> 
> http://img1.douban.com/view/photo/photo/public/p1697139550.jpg
> 
> the kernel .config file is:
> 
> http://pastebin.com/9YTnkqKN
> 
> I don't have time to look into the issue. If you need other info,
> please let me know.

It seems xt_nat_init() is called before xt_init(), so xt array is not
yet setup.



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