Vulnerability in cpufreq: qcom-cpufreq-nvmem Package
Summary
GSD-2022-1001184: cpufreq: qcom-cpufreq-nvmem: fix reading of PVS Valid fuse. Affects Kernel versions >= a8811ec764f95a04ba82f6f457e28c5e9e36e36b, < 50b65f410814a2891505ed9bdfff3486abdc8d0b. 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 CPU frequency scaling on Qualcomm-based systems. This package reads the PVS Valid fuse, which determines the maximum performance level of 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 involves an incorrect reading of the PVS Valid fuse. This issue was introduced in version v5.7 of the Linux Kernel and was fixed in version v5.17.2. The impact and attack plausibility of this vulnerability have not been proven yet. However, if exploited, it could potentially lead to unauthorized access or manipulation of the CPU frequency scaling, compromising the performance and security of the system.
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 vulnerability in the cpufreq: qcom-cpufreq-nvmem package involves an incorrect reading of the PVS Valid fuse, potentially leading to unauthorized access or manipulation of the CPU frequency scaling. It is crucial to update the Linux Kernel to version v5.17.2 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The cpufreq: qcom-cpufreq-nvmem package is a component of the Linux Kernel ecosystem responsible for managing the CPU frequency scaling on Qualcomm-based systems.
The PVS Valid fuse is a component that determines the maximum performance level of the CPU. It is read by the cpufreq: qcom-cpufreq-nvmem package.
The impact of this vulnerability is not yet proven. However, if exploited, it could potentially lead to unauthorized access or manipulation of the CPU frequency scaling, compromising the performance and security of the system.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.17.2 or later.
No specific workaround has been mentioned for this vulnerability.
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