Improper locking in Linux kernel ext4



| Updated: 2025-05-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-22120
CWE-ID CWE-667
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper locking

EUVDB-ID: #VU107796

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-2025-22120

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the ext4_setattr() function in fs/ext4/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: 6.6 - 6.14.1

CPE2.3 External links

https://git.kernel.org/stable/c/32d872e3905746ff1048078256cb00f946b97d8a
https://git.kernel.org/stable/c/7e91ae31e2d264155dfd102101afc2de7bd74a64
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.26
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.89


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.



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