SB2026050902 - Improper Check for Unusual or Exceptional Conditions in Linux kernel drm nouveau driver

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Main Vulnerability Database SB2026050902

SB2026050902 - Improper Check for Unusual or Exceptional Conditions in Linux kernel drm nouveau driver

Published: May 9, 2026

Security Bulletin ID SB2026050902
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper Check for Unusual or Exceptional Conditions (CVE-ID: CVE-2026-43381)

CWE-ID: CWE-754 - Improper Check for Unusual or Exceptional Conditions

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to improper handling of runtime-suspended devices in nouveau dpcd aux transfer handling when accessing /dev/drm_dp_* while the device is asleep. A local user can access the drm dp device interface while the device is runtime suspended to cause a denial of service.

The issue is triggered when the GPU device is in a runtime suspended state.


Remediation

Install update from vendor's website.

References