Re: [PATCH] ipc: explicitly clear stack memory in user structs

[Pekka Enberg]

On Tue, Nov 9, 2010 at 10:51 PM, Pekka Enberg <penberg@xxxxxxxxxx> 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@xxxxxxxxxxxxx>
>>>  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@xxxxxxxxxx>
>>>> Signed-off-by: Kees Cook<kees.cook@xxxxxxxxxxxxx>
>>>
>>> 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@xxxxxxxxxx>

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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