CVE-2026-43305
drm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path
- State
- Published
- Severity
- Not scored
- Published
- May 8, 2026
- Updated
- May 11, 2026
- Reserved
- May 1, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path
[Why] The evaluation for whether we need to use the DMUB HW lock isn't the same as whether we need to unlock which results in a hang when the fast path is used for ASIC without FAMS support.
[How] Store a flag that indicates whether we should use the lock and use that same flag to specify whether unlocking is needed.
Scores
The record has no CVSS score.
Weaknesses
The record names no weakness.
Affected Products
| Product | Versions |
|---|---|
LinuxLinux |
|
LinuxLinux |
|
References
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