SB20260816265 - Race condition in Linux kernel amd amdkfd driver



SB20260816265 - Race condition in Linux kernel amd amdkfd driver

Published: August 16, 2026

Security Bulletin ID SB20260816265
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) Race condition (CVE-ID: CVE-2026-74446)

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

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 or execute arbitrary code.

The vulnerability exists due to a race condition in kfd_criu_checkpoint_events() in the amdkfd event handling code when checkpointing CRIU events while concurrent event create or destroy operations occur. A local user can trigger concurrent event insertion or removal to cause a denial of service or execute arbitrary code.

Exploitation requires a second thread in the same process to race event creation or destruction with the checkpoint operation.


Remediation

Install update from vendor's website.