#VU111602 Improper locking in Linux kernel - CVE-2025-38038

Vulnerability identifier: #VU111602

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-2025-38038

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 amd_pstate_set_boost() function in drivers/cpufreq/amd-pstate.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/61e931ee145eeab8196e585ff4334870b130b744
https://git.kernel.org/stable/c/cd347d071713234586762d79c5a691785e9be418
https://git.kernel.org/stable/c/db1cafc77aaaf871509da06f4a864e9af6d6791f

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?