drm/amd/display: Fix mismatched unlock for DMUB HW lock in HWSS fast path
CVE-2026-43305 is fixed in linux on 1 platform by DEBIAN-CVE-2026-43305 (version 6.19.6-1), released May 15, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 14 | 6.19.6-1 | DEBIAN-CVE-2026-43305 | May 15, 2026 |
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