#VU120418 Use-after-free in Linux kernel - CVE-2023-53867
Published: December 26, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120418
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-53867
CWE-ID: CWE-416
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 escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fs/ceph/super.h. A local user can escalate privileges on the system.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/2b2515b8095cf2149bef44383a99d5b5677f1831
- https://git.kernel.org/stable/c/448875a73e16ba7d81dec9274ce9d33a12d092fb
- https://git.kernel.org/stable/c/aaf67de78807c59c35bafb5003d4fb457c764800
- https://git.kernel.org/stable/c/ae6e935618d99cdba11eab4714092e7e5f13cf7e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.2