Vulnerability 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.
References
- https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19
- https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b
- https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780
FAQ
What is CVE-2026-89820?
CVE-2026-89820 is a documented vulnerability. 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() ...
How severe is CVE-2026-89820?
CVSS scoring is not yet available for CVE-2026-89820. Check NVD for updates.
Is there a patch for CVE-2026-89820?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.