#VU120649 Memory leak in Linux kernel - CVE-2023-54209
Published: December 30, 2025 / Updated: December 31, 2025
Vulnerability identifier: #VU120649
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-2023-54209
CWE-ID: CWE-401
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 memory leak within the disk_release() function in block/genhd.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/7149e57cf01184fba175589f8fbe9fbf33be02e1
- https://git.kernel.org/stable/c/942e81650b81b4ca62f1d8c61de455c9e7c7e6ca
- https://git.kernel.org/stable/c/aa07e56c6a9c7558165690d14eed4fe8babf34fb
- https://git.kernel.org/stable/c/dd7de3704af9989b780693d51eaea49a665bd9c2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.39
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.5