SB20250916213 - Improper locking in Linux kernel lockd
Published: September 16, 2025 Updated: September 22, 2025
Security Bulletin ID
SB20250916213
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 security vulnerability.
1) Improper locking (CVE-ID: CVE-2022-50302)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nlm_delete_file() and nlm_traverse_locks() functions in fs/lockd/svcsubs.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/18ebd35b61b4693a0ddc270b6d4f18def232e770
- https://git.kernel.org/stable/c/31c93ee5f1e4dc278b562e20f3c3274ac34997f3
- https://git.kernel.org/stable/c/688575aef211b0986fc51010116f5888a99d76a2
- https://git.kernel.org/stable/c/95d42a8d3d4ae84a0bd3ee23e1fee240cdf0a9f0
- https://git.kernel.org/stable/c/d7aa9f7778316beb690f6e2763b6d672ad8b256f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2