CVE-2025-22040

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

16/04/2025

Last modified:

06/04/2026

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix session use-after-free in multichannel connection There is a race condition between session setup and ksmbd_sessions_deregister. The session can be freed before the connection is added to channel list of session. This patch check reference count of session before freeing it.

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.15 (including)	6.1.134 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.87 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.23 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.13.11 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.14 (including)	6.14.2 (excluding)
cpe:2.3:o:debian:debian_linux:11.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CVE-2025-22040

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools