drm/amdgpu: Fix buffer overflow in INFO ioctl

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The values for "se_num" and "sh_num" come from the user in the ioctl.
They can be in the 0-255 range but if they're more than
AMDGPU_GFX_MAX_SE (4) or AMDGPU_GFX_MAX_SH_PER_SE (2) then it results in
an out of bounds read.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Deucher 2020-08-25 11:43:45 -04:00

parent c997e8e26c

commit cf851f3ff8

1 changed files with 4 additions and 0 deletions

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4

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

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