#VU117592 Improper locking in Linux kernel - CVE-2023-53728
Published: October 23, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU117592
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-2023-53728
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 posix_timer_by_id() function in kernel/time/posix-timers.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/322377cc909defcca9451487484845e7e1d20d1b
- https://git.kernel.org/stable/c/37175e25edf7cc0d5a2cd2c2a1cbe2dcbf4a1937
- https://git.kernel.org/stable/c/6a0ac84501b4fec73a1a823c55cf13584c43f418
- https://git.kernel.org/stable/c/8ad6679a5bb97cdb3e14942729292b4bfcc0e223
- https://git.kernel.org/stable/c/8ce8849dd1e78dadcee0ec9acbd259d239b7069f
- https://git.kernel.org/stable/c/8dc52c200b889bc1cb34288fbf623d4ff381d2ae
- https://git.kernel.org/stable/c/9ea26a8494a0a9337e7415eafd6f3ed940327dc5
- https://git.kernel.org/stable/c/ef535e0315afd098c4beb1da364847eca4b56a20
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.150