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Date: Tue, 9 Nov 2010 23:34:50 +0200
Message-ID: <AANLkTin1FmyN7_-Jg9AWizfQ04+rVWhFRcpYZykBRJ0f@mail.gmail.com>
Subject: Re: [PATCH] ipc: explicitly clear stack memory in user structs
From: Pekka Enberg <penberg@kernel.org>
To: Kees Cook <kees.cook@canonical.com>
Cc: linux-kernel@vger.kernel.org, Al Viro <viro@zeniv.linux.org.uk>,
        Andrew Morton <akpm@linux-foundation.org>, Jiri Slaby <jslaby@suse.cz>,
        "David S. Miller" <davem@davemloft.net>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Hugh Dickins <hughd@google.com>,
        Manfred Spraul <manfred@colorfullife.com>
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On Tue, Nov 9, 2010 at 10:51 PM, Pekka Enberg <penberg@kernel.org> wrote:
> On 9.11.2010 22.50, Kees Cook wrote:
>>
>> Hi Pekka,
>>
>> On Tue, Nov 09, 2010 at 10:43:07PM +0200, Pekka Enberg wrote:
>>>
>>> On Tue, Oct 26, 2010 at 2:58 AM, Kees Cook<kees.cook@canonical.com>
>>> ?wrote:
>>>>
>>>> CVE-2010-4072
>>>>
>>>> The old shm interface will leak a few bytes of stack contents.
>>>> Explicitly
>>>> clear structure using memset instead of C99-style initialization in case
>>>> there are ever holes in the packing.
>>>>
>>>> Cc: stable<stable@kernel.org>
>>>> Signed-off-by: Kees Cook<kees.cook@canonical.com>
>>>
>>> This looks like a genuine bug fix but I don't see this patch in
>>> mainline. Why is that?
>>
>> No one has committed it. I don't know why; I've sent it a few times now.
>
> Andrew, would you mind picking this up and route it to the appropriate
> person if necessary?
>
> Acked-by: Pekka Enberg <penberg@kernel.org>

Oh, there seems to be a partial fix in mainline:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=3af54c9bd9e6f14f896aac1bb0e8405ae0bc7a44

Hmmh?
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