#VU119191 Improper locking in Linux kernel - CVE-2025-40220
Published: December 4, 2025
Vulnerability identifier: #VU119191
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-2025-40220
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 fuse_file_release() function in fs/fuse/file.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/26e5c67deb2e1f42a951f022fdf5b9f7eb747b01
- https://git.kernel.org/stable/c/548e1f2bac1d4df91a6138f26bb4ab00323fd948
- https://git.kernel.org/stable/c/83b375c6efef69b1066ad2d79601221e7892745a
- https://git.kernel.org/stable/c/b26923512dbe57ae4917bafd31396d22a9d1691a
- https://git.kernel.org/stable/c/bfd17b6138df0122a95989457d8e18ce0b86165e
- https://git.kernel.org/stable/c/cfd1aa3e2b71f3327cb373c45a897c9028c62b35
- https://git.kernel.org/stable/c/f19a1390af448d9e193c08e28ea5f727bf3c3049