netdev - Re: Still oopsing in nf_nat_move

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Date:	Sat, 02 Feb 2008 12:02:01 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Chuck Ebbert <cebbert@...hat.com>
CC:	Netdev <netdev@...r.kernel.org>,
	Netfilter Development Mailinglist 
	<netfilter-devel@...r.kernel.org>,
	Thomas Woerner <twoerner@...hat.com>
Subject: Re: Still oopsing in nf_nat_move_storage()

Chuck Ebbert wrote:
> On 01/31/2008 01:03 PM, Chuck Ebbert wrote:
>> On 01/29/2008 12:18 PM, Patrick McHardy wrote:
>>> Chuck Ebbert wrote:
>>>> nf_nat_move_storage():
>>>> /usr/src/debug/kernel-2.6.23/linux-2.6.23.i686/net/ipv4/netfilter/nf_nat_core.c:612
>>>>
>>>>       87:       f7 47 64 80 01 00 00    testl  $0x180,0x64(%edi)
>>>>       8e:       74 39                   je     c9
>>>> <nf_nat_move_storage+0x65>
>>>>
>>>> line 612:
>>>>         if (!(ct->status & IPS_NAT_DONE_MASK))
>>>>                 return;
>>>>
>>>> ct is NULL
>>> The current kernel (and 2.6.23-stable) have:
>>>
>>>         if (!ct || !(ct->status & IPS_NAT_DONE_MASK))
>>>                 return;
>>>
>>> so it seems you're using an old version.
> 
> So, it is now oopsing after the test for NULL and only x86_64 is
> catching the invalid address because it is non-canonical. Checking
> for NULL is obviously not enough...


Could you try whether this patch fixes it please?


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