PT-2025-46751 · Intel+4 · Intel Pstate+4
Published
2025-09-05
·
Updated
2026-05-07
·
CVE-2025-40194
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the Linux kernel related to the cpufreq subsystem and intel pstate driver. Specifically, a problem with object lifecycle management within the
update qos request() function can occur. The cpufreq cpu put() call happens prematurely, potentially leading to a crash during CPU device hot removal, although this is currently limited to virtualized environments. The issue arises because update qos request() calls freq qos update request(), which accesses a policy object through a QoS request object. The problem is mitigated by the intel pstate driver lock during operation mode changes.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu
Intel Pstate