SB2026102292 - Use-after-free in Linux kernel drm nouveau driver

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Main Vulnerability Database SB2026102292

SB2026102292 - Use-after-free in Linux kernel drm nouveau driver

Published: October 22, 2026

Security Bulletin ID SB2026102292
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) Use-after-free (CVE-ID: CVE-2026-98517)

CWE-ID: CWE-416 - Use After Free

CVSSv4: 6.8 [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]


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

The vulnerability exists due to a use-after-free in the Linux kernel Nouveau driver's nouveau_uvmm_sm() mapping path when a buffer object in TTM_PL_SYSTEM has its struct ttm_resource incorrectly treated as struct nouveau_mem. A local user can trigger mapping operations involving such a buffer object to cause a read beyond the resource allocation, potentially causing a kernel crash.


Remediation

Install update from vendor's website.

References