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

From: Pekka Enberg
Date: Tue Nov 09 2010 - 15:51:48 EST


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>

Pekka
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