CVE-2026-31477: ksmbd: fix memory leaks and NULL deref in smb2_lock()

Overview

Severity
High (CVSS 7.5)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Status
Not Exploited
Patch Tuesday
2026-Apr
Released
2026-04-23
Last Updated
2026-04-30
EPSS Score
0.48% (percentile: 39.7%)

Affected Products (1)

Open Source Software

  • cbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0

Revision History

  • 2026-04-23: Information published.
  • 2026-04-23: Information published.
  • 2026-04-29: Information published.
  • 2026-04-29: Information published.
  • 2026-04-30: Information published.