#VU106846 Division by zero in Linux kernel - CVE-2025-21898
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106846
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-2025-21898
CWE-ID: CWE-369
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 a division by zero error within the function_stat_show() function in kernel/trace/ftrace.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/3d738b53ed6cddb68e68c9874520a4bf846163b5
- https://git.kernel.org/stable/c/5b3d32f607f0478b414b16516cf27f9170cf66c8
- https://git.kernel.org/stable/c/746cc474a95473591853927b3a9792a2d671155b
- https://git.kernel.org/stable/c/992775227843c9376773784b8b362add44592ad7
- https://git.kernel.org/stable/c/9cdac46fa7e854e587eb5f393fe491b6d7a9bdf6
- https://git.kernel.org/stable/c/a1a7eb89ca0b89dc1c326eeee2596f263291aca3
- https://git.kernel.org/stable/c/ca381f60a3bb7cfaa618d73ca411610bd7fc3149
- https://git.kernel.org/stable/c/f58a3f8e284d0bdf94164a8e61cd4e70d337a1a3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.81