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author | 2021-05-28 10:53:54 -0700 | |
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committer | 2021-06-01 22:55:39 -0400 | |
commit | 06888d571b513cbfc0b41949948def6cb81021b2 (patch) | |
tree | e21ecc88d916bb8412b10124d249bf5c48717581 /include/drm/drm_atomic.h | |
parent | amdgpu: remove unreachable code (diff) | |
download | linux-dev-06888d571b513cbfc0b41949948def6cb81021b2.tar.xz linux-dev-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 <keescook@chromium.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm/drm_atomic.h')
0 files changed, 0 insertions, 0 deletions