#VU115860 Memory leak in Linux kernel - CVE-2023-53403
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115860
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-2023-53403
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 module_init() function in kernel/time/test_udelay.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/15cffd01ed80e3506e29ba9f441e2358413b7317
- https://git.kernel.org/stable/c/5b268d8abaec6cbd4bd70d062e769098d96670aa
- https://git.kernel.org/stable/c/b588b42d077ce93c98704b41003bcec6a564b738
- https://git.kernel.org/stable/c/dc39fbd865a9819db4b622f610ba17b2ebc294f4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.99