CVE-2026-89662: NFSD: Prevent lock owner use-after-free during client teardown

Overview

Severity
Medium (CVSS 5.3)
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Sep
Released
2026-09-13
Last Updated
2026-10-02
EPSS Score
0.69% (percentile: 52.9%)

Affected Products (2)

Open Source Software

  • azl3 kernel 6.6.150.1-1 on Azure Linux 3.0
  • azl3 kernel 6.6.152.1-1 on Azure Linux 3.0

Security Updates (1)

Revision History

  • 2026-09-13: Information published.
  • 2026-09-14: Information published.
  • 2026-09-23: Information published.
  • 2026-09-23: Information published.
  • 2026-09-25: Information published.
  • 2026-10-02: Information published.