CVE-2026-43305
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7d041982fe11fff29b32a09228c4d52f159b56ad < 4e387ad67efb100b645630ffbce7716786f52283 | affected |
| Linux | Linux | 7d041982fe11fff29b32a09228c4d52f159b56ad < af3303970da5ce5bfe6dffdd07f38f42aad603e0 | affected |
| Linux | Linux | 6.19 | affected |
| Linux | Linux | 0 < 6.19 | unaffected |
| Linux | Linux | 6.19.6 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/4e387ad67efb100b645630ffbce7716786f52283
- https://git.kernel.org/stable/c/af3303970da5ce5bfe6dffdd07f38f42aad603e0
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