CVE-2026-43305

MEDIUM
MEDIUM Priority: 0.00 BB Relevance: 36/100
Published: 2026-05-08 Modified: 2026-11-06 First seen: 2026-11-06 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: None
I: None
A: High

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.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
Linux Linux 7d041982fe11fff29b32a09228c4d52f159b56ad < 4e387ad67efb100b645630ffbce7716786f52283
Linux Linux 7d041982fe11fff29b32a09228c4d52f159b56ad < af3303970da5ce5bfe6dffdd07f38f42aad603e0
Linux Linux 6.19
linux linux_kernel 6.19 – 6.19.6

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.08%
Raw Score 0.000830
Percentile 0.2%
Date 2026-11-10

EPSS Trend

2026-11-10
0.00083
2026-11-09
0.00083
2026-11-08
0.00083
2026-11-07
0.00083
2026-11-06
0.00083

Intelligence Sources

mitre ref →
nvd ref →