CVE-2026-89820
Unknown
Description
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedSep 16, 2026
First seenSep 16, 2026
How to fix
Update
- Linux Linux295d2bf42061db490254e748f9344545bb7faf19, dac29cbb405b912742f4f7eda833cec8e7a53780, 92a9eebd2a1f892fe482154d83f9f1626bc73d3b or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f ≤ v < 295d2bf42061db490254e748f9344545bb7faf19, 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f ≤ v < dac29cbb405b912742f4f7eda833cec8e7a53780, 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f ≤ v < 92a9eebd2a1f892fe482154d83f9f1626bc73d3b, 6.15 | 295d2bf42061db490254e748f9344545bb7faf19, dac29cbb405b912742f4f7eda833cec8e7a53780, 92a9eebd2a1f892fe482154d83f9f1626bc73d3b |
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