#VU106803 Improper locking in Linux kernel - CVE-2025-21900

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU106803

#VU106803 Improper locking in Linux kernel - CVE-2025-21900

Published: April 2, 2025 / Updated: May 11, 2025


Vulnerability identifier: #VU106803
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-21900
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

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

The vulnerability exists due to improper locking within the nfs4_atomic_open() function in fs/nfs/nfs4proc.c, within the nfs4_inode_return_delegation() function in fs/nfs/delegation.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

External links