Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7d041982fe11fff29b32a09228c4d52f159b56ad before 4e387ad67efb100b645630ffbce7716786f52283; affected 7d041982fe11fff29b32a09228c4d52f159b56ad before af3303970da5ce5bfe6dffdd07f38f42aad603e0 |
| Linux / Linux | affected 6.19; unaffected 0 before 6.19; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.