CVE-2026-31608

critical

Description

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.

References

https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72

https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032

https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25

https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023

Details

Source: Mitre, NVD

Published: 2026-04-24

Updated: 2026-04-29

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.00017