#VU119345 Improper locking in Linux kernel - CVE-2025-40273
Published: December 8, 2025
Vulnerability identifier: #VU119345
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-2025-40273
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
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_free_ol_stateid() function in fs/nfsd/nfs4state.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/29fbb3ad4018ca2b0988fbac76f4c694cc6d7e66
- https://git.kernel.org/stable/c/4aa17144d5abc3c756883e3a010246f0dba8b468
- https://git.kernel.org/stable/c/839f56f626723f36904764858467e7a3881b975d
- https://git.kernel.org/stable/c/935a2dc8928670bb2c37e21025331e61ec48ccf4
- https://git.kernel.org/stable/c/b114996a095da39e38410a0328d4a8aca8c36088
- https://git.kernel.org/stable/c/d7be15a634aa3874827d0d3ea47452ee878b8df7
- https://git.kernel.org/stable/c/f67ad9b33b0e6f00d2acc67cbf9cfa5c756be5fb