Input validation error in Linux kernel f2fs

1) Input validation error

EUVDB-ID: #VU107753

Risk: Low

CVSSv4.0: 4.3 [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-2025-22123

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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 f2fs_write_inode() function in fs/f2fs/inode.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14 - 6.14.1

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:6.14:*:*:*:*:*:*:*
• cpe:2.3:o:linux_foundation:linux_kernel:6.14.1:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/7f90e5d423cd2d4c74b2abb527872f335108637f
https://git.kernel.org/stable/c/986c50f6bca109c6cf362b4e2babcb85aba958f6
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.