CVE-2026-89820
drm/amd/display: fix dc_lock leak on GPU reset error paths
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix dc_lock leak on GPU reset error paths On GPU reset, dm_suspend() takes dc_lock and leaves it for dm_resume() to drop. If amdgpu_dm_commit_zero_streams() or dm_dmub_hw_init() fails, the function returns with the lock still held. The matching resume path is then skipped, so every later dc_lock take hangs. Release the cached DC state and unlock before returning the error.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
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Affected Versions
Linux / Linux
3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < 295d2bf42061db490254e748f9344545bb7faf19 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < dac29cbb405b912742f4f7eda833cec8e7a53780 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < 92a9eebd2a1f892fe482154d83f9f1626bc73d3b
Linux / Linux
6.15