CVE-2026-43305

MediumCVSS 5.5/10Last modified Nov 11, 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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-667

Affected software

VendorProductVersions
LinuxLinux>= 7d041982fe11fff29b32a09228c4d52f159b56ad, < 4e387ad67efb100b645630ffbce7716786f52283; >= 7d041982fe11fff29b32a09228c4d52f159b56ad, < af3303970da5ce5bfe6dffdd07f38f42aad603e0
LinuxLinux6.19

References

Timeline

Published
May 8, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

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CVE-2026-43305: Medium severity, CVSS 5.5 | Vulnix