PT-2025-22186 · Linux+5 · Linux Kernel+5

Published

2025-04-25

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Updated

2026-04-20

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CVE-2025-37924

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A use-after-free issue in the Linux kernel's ksmbd component, related to Kerberos authentication, has been identified. The problem arises when another thread operates on a session and uses sess->user after it has been passed to ksmbd free user but before sess->user is set to NULL. This issue was addressed by introducing a fix to set sess->user to NULL, preventing a dangling pointer created by ksmbd free user.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2025-12068
CVE-2025-37924
DLA-4271-1
DSA-5925-1
ECHO-B603-F15E-95D9
MGASA-2025-0182
MGASA-2025-0183
OESA-2025-2268
OESA-2025-2269
OESA-2025-2270
USN-7649-1
USN-7649-2
USN-7650-1
USN-7665-1
USN-7665-2
USN-7721-1
USN-8028-1
USN-8028-2
USN-8028-3
USN-8028-4
USN-8028-5
USN-8028-6
USN-8028-7
USN-8028-8
USN-8031-1
USN-8031-2
USN-8031-3
USN-8052-1
USN-8052-2
USN-8074-1
USN-8074-2
USN-8126-1

Affected Products

Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Ubuntu