Vulnerability in cpufreq: qcom-cpufreq-nvmem Package

Kernel Updated 02 Oct 2025

Summary

24/04/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1001503: cpufreq: qcom-cpufreq-nvmem: fix reading of PVS Valid fuse. Affects Kernel versions >= a8811ec764f95a04ba82f6f457e28c5e9e36e36b, < 22b1ea0421d486b8a7e49cad4a2f3c18f6305300. No fix is published. How to fix ↓

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Background

The cpufreq: qcom-cpufreq-nvmem package is a component of the Linux Kernel ecosystem. It is responsible for managing the frequency scaling of Qualcomm CPUs. This package reads the PVS Valid fuse, which determines the available performance levels for the CPU. However, a vulnerability has been discovered in the reading process of this fuse.

Vulnerability Detail

The vulnerability in cpufreq: qcom-cpufreq-nvmem package allows for incorrect reading of the PVS Valid fuse. This can lead to inaccurate performance level information being used, potentially resulting in suboptimal CPU performance. The vulnerability was introduced in version v5.7 of the Linux Kernel and was fixed in version v5.16.19. The impact and attack plausibility of this vulnerability have not been proven.

How To Fix

No fixed version is published for this vulnerability.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

The cpufreq: qcom-cpufreq-nvmem package in the Linux Kernel is vulnerable to incorrect reading of the PVS Valid fuse. To mitigate this vulnerability, it is recommended to update the Linux Kernel to version v5.16.19 or later. For further support on vulnerability remediation, please contact DevNack.com.

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