#VU116796 Improper locking in Linux kernel - CVE-2023-53668
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116796
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-2023-53668
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 ring_buffer_size() function in kernel/trace/ring_buffer.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/0a29dae5786d263016a9aceb1e56bf3fd4cc6fa0
- https://git.kernel.org/stable/c/27bdd93e44cc28dd9b94893fae146b83d4f5b31e
- https://git.kernel.org/stable/c/5e68f1f3a20fe9b6bde018e353269fbfa289609c
- https://git.kernel.org/stable/c/7e42907f3a7b4ce3a2d1757f6d78336984daf8f5
- https://git.kernel.org/stable/c/8b0b63fdac6b70a45614e7d4b30e5bbb93deb007
- https://git.kernel.org/stable/c/a55e8a3596048c2f7b574049aeb1885b5abba1cc
- https://git.kernel.org/stable/c/bb14a93bccc92766b1d9302c6bcbea17d4bce306
- https://git.kernel.org/stable/c/e84829522fc72bb43556b31575731de0440ac0dd
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.251