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Date: Mon, 3 Feb 2014 03:45:02 +0000 (UTC)
From: mancha <mancha1@...h.com>
To: oss-security@...ts.openwall.com
Subject: Re: Linux 3.4+: arbitrary write with CONFIG_X86_X32 (CVE-2014-0038)

On Mon, 03 Feb 2014 03:16:13 +0000, mancha wrote:
> On Sun, 02 Feb 2014 08:14:44 +0400, Solar Designer wrote:
> 
[SNIP]
> 
> The exploit by Rebel works as advertised. I've confirmed on a non-Ubuntu box 
> after making some changes.
> 
> Attached find a kernel module I've authored that protects from the attack.
> 
> I'm sharing it for folks currently on vulnerable systems still waiting on
> patches from their upstream.
> 
>  # make
>  # insmod nox32recvmmsg.ko
> 
> note: rmmod'ing restores original (vulnerable) state.
> 
> --mancha

Having issues attaching via this client. So, posted kernel module here:

http://sf.net/projects/mancha/files/sec/nox32recvmmsg.tar.bz2


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