SB20261023198 - Memory leak in Linux kernel drm vc4 driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB20261023198

SB20261023198 - Memory leak in Linux kernel drm vc4 driver

Published: October 23, 2026

Security Bulletin ID SB20261023198
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) Memory leak (CVE-ID: CVE-2026-98970)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a local privileged user to potentially cause a denial of service through kernel memory exhaustion.

The vulnerability exists due to failure to release the buffer object cache size list in vc4_bo_cache_destroy() in the Linux kernel VC4 graphics driver when tearing down the cache during driver unbinding. A local privileged user can trigger repeated unbind operations, if permitted, to leak kernel memory and potentially cause a denial of service.


Remediation

Install update from vendor's website.

References