#VU121444 Input validation error in Linux kernel - CVE-2025-68788
Published: January 14, 2026
Vulnerability identifier: #VU121444
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-2025-68788
CWE-ID: CWE-20
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 input validation within the __fsnotify_parent() function in fs/notify/fsnotify.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/635bc4def026a24e071436f4f356ea08c0eed6ff
- https://git.kernel.org/stable/c/6a7d7d96eeeab7af2bd01afbb3d9878a11a13d91
- https://git.kernel.org/stable/c/7a93edb23bcf07a3aaf8b598edfc2faa8fbcc0b6
- https://git.kernel.org/stable/c/82f7416bcbd951549e758d15fc1a96a5afc2e900
- https://git.kernel.org/stable/c/e0643d46759db8b84c0504a676043e5e341b6c81