#VU115238 Memory leak in Linux kernel - CVE-2023-53227
Published: September 16, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115238
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-2023-53227
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 dirty_cow_znode() function in fs/ubifs/tnc.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/011050fc471cd0b32410694facb47bac20e7262b
- https://git.kernel.org/stable/c/10b6c359e374df1120b951768260083ef047d7fb
- https://git.kernel.org/stable/c/122deabfe1428bffe95e2bf364ff8a5059bdf089
- https://git.kernel.org/stable/c/510b80abe8d2d89e4ff21d71f1804ba2e5d3a96b
- https://git.kernel.org/stable/c/5759076fc7c54614084002345a21bc2c578bf4a8
- https://git.kernel.org/stable/c/76c488e8a0e2783c6d8753cb7354a420593e8c30
- https://git.kernel.org/stable/c/9d4768523b092bfb9a9bfa6b1d903b968c8008cf
- https://git.kernel.org/stable/c/bbcf899036eeb98c3a938fb08946c6b52771f71c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2.5