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Old 10-11-2010, 01:06 AM
Ben Hutchings
 
Default drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle

You'll probably want to apply this on top of 2.6.32.24.10:

commit 9a865de8e9ff9ce3d8ff7f4cd6cead7bfde9ca31
Author: Alex Deucher <alexdeucher@gmail.com>
Date: Mon Sep 27 10:53:34 2010 -0400

drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle

radeon_gem_wait_idle_ioctl can apparently get called prior to
the vram page being set up or even if accel if false, so make
sure it's valid before using it.

Should fix:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=597636
https://bugs.freedesktop.org/show_bug.cgi?id=29834

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org

Ben.

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Ben Hutchings
Once a job is fouled up, anything done to improve it makes it worse.
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Old 10-11-2010, 10:03 AM
Stefan Bader
 
Default drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle

On 10/11/2010 02:06 AM, Ben Hutchings wrote:
> You'll probably want to apply this on top of 2.6.32.24.10:
>
> commit 9a865de8e9ff9ce3d8ff7f4cd6cead7bfde9ca31
> Author: Alex Deucher <alexdeucher@gmail.com>
> Date: Mon Sep 27 10:53:34 2010 -0400
>
> drm/radeon/kms: fix potential segfault in r600_ioctl_wait_idle
>
> radeon_gem_wait_idle_ioctl can apparently get called prior to
> the vram page being set up or even if accel if false, so make
> sure it's valid before using it.
>
> Should fix:
> http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=597636
> https://bugs.freedesktop.org/show_bug.cgi?id=29834
>
> Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
> Cc: stable@kernel.org
>
> Ben.
>

Thanks for the pointer Ben. I think there also have been a few stable patches
that went into .32 and .35 which makes them likely to be suitable for .33 as
well. We had been a little busy with other things but I think I will have a look
over those and send them to the list when I get back (which will be tomorrow).

-Stefan

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