CVE-2026-89820
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < 295d2bf42061db490254e748f9344545bb7faf19 | affected |
| Linux | Linux | 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < dac29cbb405b912742f4f7eda833cec8e7a53780 | affected |
| Linux | Linux | 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < 92a9eebd2a1f892fe482154d83f9f1626bc73d3b | affected |
| Linux | Linux | 6.15 | affected |
| Linux | Linux | 0 < 6.15 | unaffected |
| Linux | Linux | 6.18.51 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.5 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19
- https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780
- https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.