SB20260325135 - NULL Pointer Dereference in Linux kernel drm vmwgfx driver



SB20260325135 - NULL Pointer Dereference in Linux kernel drm vmwgfx driver

Published: March 25, 2026

Security Bulletin ID SB20260325135
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) NULL Pointer Dereference (CVE-ID: CVE-2026-23317)

CWE-ID: CWE-476 - NULL Pointer Dereference

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


The vulnerability allows a local user to execute arbitrary code and escalate privileges.

The vulnerability exists due to improper error handling in the vmw_translate_ptr functions in the drm/vmwgfx subsystem when translating pointers. A local user can trigger a use of an uninitialized pointer to cause out-of-bounds memory accesses and execute arbitrary code.

Successful exploitation may lead to privilege escalation and system compromise.


Remediation

Install update from vendor's website.