CVE-2026-31608

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-31608
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.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023 Patch
https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25 Patch
https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032 Patch
https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

29 Apr 2026, 20:03

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux
Linux linux Kernel
CWE CWE-415
References () https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023 - () https://git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023 - Patch
References () https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25 - () https://git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25 - Patch
References () https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032 - () https://git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032 - Patch
References () https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72 - () https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72 - Patch

27 Apr 2026, 15:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 9.8

27 Apr 2026, 12:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72 -

24 Apr 2026, 15:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-24 15:16

Updated : 2026-04-29 20:03

NVD link : CVE-2026-31608

Mitre link : CVE-2026-31608

CVE.ORG link : CVE-2026-31608

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-415

Double Free