#VU107741 Improper locking in Linux kernel - CVE-2025-22125

Vulnerability identifier: #VU107741

Vulnerability 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-2025-22125

CWE-ID: CWE-667

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to improper locking within the raid10_read_request() and raid10_write_one_disk() functions in drivers/md/raid10.c, within the raid1_read_request() and raid1_write_request() functions in drivers/md/raid1.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

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External links
https://git.kernel.org/stable/c/8a0adf3d778c4a0893c6d34a9e1b0082a6f1c495
https://git.kernel.org/stable/c/e879a0d9cb086c8e52ce6c04e5bfa63825a6213c
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2

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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.