[PATCH 4.19 1/2] drm/amdgpu: Check if fd really is an amdgpu fd.

[Greg KH]

On Tue, Apr 12, 2022 at 04:35:28PM +0100, Lee Jones wrote:
> From: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
> 
> [ Upstream commit 021830d24ba55a578f602979274965344c8e6284 ]
> 
> Otherwise we interpret the file private data as drm & amdgpu data
> while it might not be, possibly allowing one to get memory corruption.
> 
> Cc: Felix Kuehling <Felix.Kuehling at amd.com>
> Cc: Alex Deucher <alexander.deucher at amd.com>
> Cc: "Christian König" <christian.koenig at amd.com>
> Cc: David Airlie <airlied at linux.ie>
> Cc: Daniel Vetter <daniel at ffwll.ch>
> Cc: amd-gfx at lists.freedesktop.org
> Cc: dri-devel at lists.freedesktop.org
> Signed-off-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
> Reviewed-by: Christian König <christian.koenig at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> Signed-off-by: Lee Jones <lee.jones at linaro.org>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu.h       |  2 ++
>  drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c   | 16 ++++++++++++++++
>  drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c | 10 +++++++---
>  3 files changed, 25 insertions(+), 3 deletions(-)

Both now queued up, thanks.

greg k-h