#VU120814 Improper locking in Linux kernel - CVE-2023-54226
Published: December 30, 2025 / Updated: December 30, 2025
Vulnerability identifier: #VU120814
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-2023-54226
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 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 repository.
External links
- 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