#VU108875 Improper locking in Linux kernel - CVE-2025-37868

Vulnerability identifier: #VU108875

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-2025-37868

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 xe_npages_in_range() and xe_hmm_userptr_populate_range() functions in drivers/gpu/drm/xe/xe_hmm.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, 6.14.2, 6.14.3

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External links
https://git.kernel.org/stable/c/2577b202458cddff85cc154b1fe7f313e0d1f418
https://git.kernel.org/stable/c/65dc4e3d5b01db0179fc95c1f0bdb87194c28ab5
https://git.kernel.org/stable/c/90574ecf6052be83971d91d16600c5cf07003bbb
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4

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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.