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| author | Kees Cook <[email protected]> | 2021-05-28 17:53:54 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2021-06-02 02:55:39 +0000 |
| commit | 06888d571b513cbfc0b41949948def6cb81021b2 (patch) | |
| tree | e21ecc88d916bb8412b10124d249bf5c48717581 /drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | |
| parent | amdgpu: remove unreachable code (diff) | |
| download | kernel-06888d571b513cbfc0b41949948def6cb81021b2.tar.gz kernel-06888d571b513cbfc0b41949948def6cb81021b2.zip | |
drm/amd/display: Avoid HDCP over-read and corruption
Instead of reading the desired 5 bytes of the actual target field,
the code was reading 8. This could result in a corrupted value if the
trailing 3 bytes were non-zero, so instead use an appropriately sized
and zero-initialized bounce buffer, and read only 5 bytes before casting
to u64.
Signed-off-by: Kees Cook <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c')
0 files changed, 0 insertions, 0 deletions