SB20251230259 - Improper locking in Linux kernel unix
Published: December 30, 2025 Updated: December 30, 2025
Security Bulletin ID
SB20251230259
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-2023-54226)
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(), unix_shutdown(), unix_poll() and unix_dgram_poll() functions 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/196528ad484443627779540697f4fb0ef0e01c52
- https://git.kernel.org/stable/c/1c488f4e95b498c977fbeae784983eb4cf6085e8
- https://git.kernel.org/stable/c/8307e372e7445ec7d3cd2ff107ce5078eaa02815
- https://git.kernel.org/stable/c/a41559ae3681975f1ced815d8d4c983b6b938499
- https://git.kernel.org/stable/c/e1d09c2c2f5793474556b60f83900e088d0d366d
- https://git.kernel.org/stable/c/e410895892f99700ce54347d42c8dbe962eea9f4
- https://git.kernel.org/stable/c/f237f79b63c9242450e6869adcd2c10445859f28
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.4