#VU115468 Improper locking in Linux kernel - CVE-2023-53216
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115468
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-2023-53216
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 efi_handle_corrupted_x18() function in arch/arm64/kernel/efi.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/030b1c4217a4f504c7d0795a2bd86b7181e56f11
- https://git.kernel.org/stable/c/0e68b5517d3767562889f1d83fdb828c26adb24f
- https://git.kernel.org/stable/c/4e8f7d998b582a99aadedd07ae6086e99b89c97a
- https://git.kernel.org/stable/c/6a72729ed6accc86dad5522895e8fa2f96642a2c
- https://git.kernel.org/stable/c/8b38969fa01662ec539a0d08a8ea5ec6f31fa4ed
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.18