Improper locking in Linux kernel - CVE-2025-38379

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Main Vulnerability Database Vulnerabilities #VU113287

Improper locking in Linux kernel - CVE-2025-38379

Published: July 27, 2025


Vulnerability identifier: #VU113287
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-38379
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the free_xid() and smb2_reconnect_server() functions in fs/smb/client/smb2pdu.c. A local user can perform a denial of service (DoS) attack.


How to mitigate CVE-2025-38379

Install update from vendor's repository.

Sources