SB2025052131 - Improper locking in Linux kernel fs
Published: May 21, 2025 Updated: May 21, 2025
Security Bulletin ID
SB2025052131
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper locking (CVE-ID: CVE-2025-37988)
CWE-ID: CWE-667 - Improper Locking
CVSSv4: 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
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the do_lock_mount() and lock_mount() functions in fs/namespace.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/0d039eac6e5950f9d1ecc9e410c2fd1feaeab3b6
- https://git.kernel.org/stable/c/4f435c1f4c48ff84968e2d9159f6fa41f46cf998
- https://git.kernel.org/stable/c/a61afd54826ac24c2c93845c4f441dbc344875b1
- https://git.kernel.org/stable/c/d4b21e8cd3d7efa2deb9cff534f0133e84f35086
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.5