CRITICAL: CVE-2026-31608 (CVSS 9.8) — multiple products

CVE: CVE-2026-31608

CVSS: 9.8 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: CRITICAL

Status: Critical advisory

Affected

_See vendor advisory_

Summary

In the Linux kernel, the following vulnerability has been resolved:

smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()

smb_direct_flush_send_list() already calls smb_direct_free_sendmsg(),

so we should not call it again after post_sendmsg()

moved it to the batch list.

Verified Sources

References

https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023
https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25
https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032
https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._

Lyrie Verdict

A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.

#critical