CVE-2026-89820drm/amd/display: fix dc_lock leak on GPU reset error paths
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f before 295d2bf42061db490254e748f9344545bb7faf19; from 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f before dac29cbb405b912742f4f7eda833cec8e7a53780; from 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f before 92a9eebd2a1f892fe482154d83f9f1626bc73d3b | CNA record |
References
- https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19
- https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780
- https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.