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Message-ID: <49F01CC0.20405@redhat.com>
Date: Thu, 23 Apr 2009 15:46:08 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: Willy Tarreau <w@....eu>
Subject: Re: Re: CVE-2009-1265 kernel: af_rose/x25: Sanity
check the maximum user frame size
Marcus Meissner wrote:
> On Thu, Apr 23, 2009 at 02:54:06PM +0800, Eugene Teo wrote:
>> Willy Tarreau wrote:
>>> Hi Eugene,
>>>
>>> On Wed, Apr 08, 2009 at 03:58:55PM +0800, Eugene Teo wrote:
>>>> {nr,rose,x25}_sendmsg() functions need to have sanity checks on the
>>>> packet size, otherwise the sizes can wrap and end up sending garbage.
>>>>
>>>> http://bugzilla.kernel.org/show_bug.cgi?id=10423
>>>> http://git.kernel.org/linus/83e0bbcbe2145f160fbaa109b0439dae7f4a38a9
>>>> http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2009-1265
>>>>
>>>> This affects both 2.4.x and 2.6.x if CONFIG_{NETROM,ROSE,X25} are enabled.
>>> I already have it in my queue, just did not have time to merge it yet.
>>> Thanks for the reminder anyway, I really appreciate it ;-)
>> You will need this too :)
>>
>> upstream commit: cc29c70dd581f85ee7a3e7980fb031f90b90a2ab
>>
>> Patch "af_rose/x25: Sanity check the maximum user frame size"
>> (commit 83e0bbcbe2145f160fbaa109b0439dae7f4a38a9) from Alan Cox got
>> locking wrong. If we bail out due to user frame size being too large,
>> we must unlock the socket beforehand.
>
> I do not see cc29c70dd581f85ee7a3e7980fb031f90b90a2ab in mainline kernel git
> yet, in which git does it live?
Interesting.
http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git;a=blob;f=queue-2.6.29/net-netrom-fix-socket-locking.patch;h=146431b88a3a57c98e56570941cd5ad6aeb1498c;hb=2f87957d1eaba126d27066479f25889a4191ebe8
Eugene
--
Eugene Teo / Red Hat Security Response Team
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