#VU119751 Improper locking in Linux kernel - CVE-2023-53815
Published: December 10, 2025 / Updated: December 12, 2025
Vulnerability identifier: #VU119751
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-2023-53815
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 SYSCALL_DEFINE1() and exit_itimers() functions 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/0670c4c567b27bd8f999a943028f4fe60d1a1106
- https://git.kernel.org/stable/c/9d9e522010eb5685d8b53e8a24320653d9d4cbbf
- https://git.kernel.org/stable/c/c1968bb8a28625cc95d2ad3ca872ab98c9c36d59
- https://git.kernel.org/stable/c/e7aff15ba29ba4b3052786b1636fa5c4aa39e179
- https://git.kernel.org/stable/c/f1be1ed32daa053484222f7f9beb2b16c624dffd
- https://git.kernel.org/stable/c/f9bd298e3e4d3fd6e19f017789a42d0f332cd555
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.13