drm/amdgpu: fix integer overflow test in amdgpu_bo_list_create()

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[ Upstream commit ff30e9e850 ]

We accidentally left out the size of the amdgpu_bo_list struct.  It
could lead to memory corruption on 32 bit systems.  You'd have to
pick the absolute maximum and set "num_entries == 59652323" then size
would wrap to 16 bytes.

Fixes: 920990cb08 ("drm/amdgpu: allocate the bo_list array after the list")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Bas Nieuwenhuizen <basni@chromium.org>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dan Carpenter 2018-08-10 18:50:32 +08:00 • committed by Greg Kroah-Hartman

parent 36c99a1636

commit 6fc72c1b88

1 changed files with 2 additions and 1 deletions

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drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c

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