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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-39799 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: perflib: Move problematic pr->performance check Commit d33bd88ac0eb ("ACPI: processor: perflib: Fix initial _PPC limit application") added a pr->performance check that prevents the frequency QoS request from being added when the given processor has no performance object. Unfortunately, this causes a WARN() in freq_qos_remove_request() to trigger on an attempt to take the given CPU offline later because the frequency QoS object has not been added for it due to the missing performance object. Address this by moving the pr->performance check before calling acpi_processor_get_platform_limit() so it only prevents a limit from being set for the CPU if the performance object is not present. This way, the frequency QoS request is added as it was before the above commit and it is present all the time along with the CPU's cpufreq policy regardless of whether or not the CPU is online.


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/19849010c9e18d54375091864a3313fc328d6186 kernel.org
https://git.kernel.org/stable/c/31ee723d6fc581b76396994a96b85be3e87f67d6 kernel.org
https://git.kernel.org/stable/c/8972d7dbdac029c9dbf62a45d7d8c71999785765 kernel.org
https://git.kernel.org/stable/c/bf2809541497749c4f2646b87bf75244f5a2a5d9 kernel.org
https://git.kernel.org/stable/c/cb4b5f4a1e778f6a20d06d4eda6842714a817618 kernel.org
https://git.kernel.org/stable/c/d405ec23df13e6df599f5bd965a55d13420366b8 kernel.org
https://git.kernel.org/stable/c/edc065c19257adfd9c356178dac021df661e169e kernel.org
https://git.kernel.org/stable/c/fc36403e741d7674a44632313db33fa7605cb2b4 kernel.org
https://git.kernel.org/stable/c/fd9cad6b0676e0bb3a98ee0a8865a86e2f53eb07 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-39799
NVD Published Date:
09/12/2025
NVD Last Modified:
09/12/2025
Source:
kernel.org