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| author |   Dan Carpenter <dan.carpenter@oracle.com> | 2019-06-08 12:23:57 +0300 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-06-12 20:39:48 -0500 |
| commit | 99f304beb82a86713dc4bc1fd65b8dfda25b1f5e (patch) | |
| tree | ac015e389c4cc3d91bf0d4efcb57ac41f69f3d55 /drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | |
| parent | drm/amdgpu/{uvd,vcn}: fetch ring's read_ptr after alloc (diff) | |
| download | linux-dev-99f304beb82a86713dc4bc1fd65b8dfda25b1f5e.tar.xz linux-dev-99f304beb82a86713dc4bc1fd65b8dfda25b1f5e.zip | |
drm/amdgpu: Fix bounds checking in amdgpu_ras_is_supported()
The "block" variable can be set by the user through debugfs, so it can
be quite large which leads to shift wrapping here. This means we report
a "block" as supported when it's not, and that leads to array overflows
later on.
This bug is not really a security issue in real life, because debugfs is
generally root only.
Fixes: 36ea1bd2d084 ("drm/amdgpu: add debugfs ctrl node")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions