CVE-2026-89675: nfsd: fix UAF in async copy cancel and shutdown

Overview

Severity

Critical (CVSS 9.8)

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-10-22

Last Updated

2026-10-23

EPSS Score

0.44% (percentile: 37.4%)

Affected Products (1)

Other

• 21932-17084

Revision History

• 2026-10-22: Information published.
• 2026-10-23: Information published.