#VU103045 Resource management error in Linux kernel - CVE-2025-21645

Vulnerability identifier: #VU103045

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-2025-21645

CWE-ID: CWE-399

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 resource management error within the amd_pmc_suspend_handler() function in drivers/platform/x86/amd/pmc/pmc.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/5cc621085e2b7a9b1905a98f8e5a86bb4aea2016
https://git.kernel.org/stable/c/b25778c87a6bce40c31e92364f08aa6240309e25
https://git.kernel.org/stable/c/dd410d784402c5775f66faf8b624e85e41c38aaf

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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.