SB2026082796 - Improper input validation in Linux kernel amd amdgpu driver

CSH
CYBERSECURITY HELP
Sign In REGISTER

Main Vulnerability Database SB2026082796

SB2026082796 - Improper input validation in Linux kernel amd amdgpu driver

Published: August 27, 2026

Security Bulletin ID SB2026082796
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) Improper input validation (CVE-ID: CVE-2026-80541)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.5 [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]


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

The vulnerability exists due to improper input validation in amdgpu_gem_create_ioctl() when processing GEM create requests with invalid domain combinations. A local user can submit a specially crafted domain combination to cause a denial of service.

The issue is triggered when CPU, GTT, or VRAM domains are combined with DOORBELL, GDS, GWS, or OA domains, causing amdgpu_bo_placement_from_domain() to exceed AMDGPU_BO_MAX_PLACEMENTS and hit BUG_ON().


Remediation

Install update from vendor's website.

References