SB20251226256 - Improper locking in Linux kernel unix
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226256
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-2023-54006)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the unix_release_sock() function in net/unix/af_unix.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/20aa8325464d8905450089eed96ca102a074d853
- https://git.kernel.org/stable/c/2d8933ca863e252fb09ad0be483255e3dfeb1f54
- https://git.kernel.org/stable/c/31b46d5e7c4e295bd112960614a66a177a057dca
- https://git.kernel.org/stable/c/5d91b7891f4a9a9d69d75e9f44ab4bf1f3b11840
- https://git.kernel.org/stable/c/ade32bd8a738d7497ffe9743c46728db26740f78
- https://git.kernel.org/stable/c/afc284a4a781defbb12b2a40427fae34c3d20e17
- https://git.kernel.org/stable/c/cf29b42766ad4af2ae6a449f583796951551b48d
- https://git.kernel.org/stable/c/e5edc6e44a882c0458878ab10eaddfe60ac34e57
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.132