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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

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

No history.

Information

Published : 2026-04-24 15:16

Updated : 2026-06-17 10:34

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

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