SB2026082798 - Missing Release of Resource after Effective Lifetime in Linux kernel amd amdgpu driver

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Main Vulnerability Database SB2026082798

SB2026082798 - Missing Release of Resource after Effective Lifetime in Linux kernel amd amdgpu driver

Published: August 27, 2026

Security Bulletin ID SB2026082798
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) Missing Release of Resource after Effective Lifetime (CVE-ID: CVE-2026-80539)

CWE-ID: CWE-772 - Missing Release of Resource after Effective Lifetime

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 cause a denial of service.

The vulnerability exists due to improper resource management in amdgpu_cs_pass1() and amdgpu_cs_p1_user_fence() when processing a submit request containing multiple AMDGPU_CHUNK_ID_FENCE chunks. A local user can submit crafted command stream data with duplicate fence chunks to cause a denial of service.

The leaked buffer object reference can outlive handle close and process exit.


Remediation

Install update from vendor's website.

References