CVE-2021-47067: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: soc/tegra: regulators: Fix locking up when voltage-spread is out of range Fix voltage coupler lockup which happens when voltage-spread is out of range due to a bug in the code. The max-spread requirement shall be accounted when CPU regulator doesn't have consumers. This problem is observed on Tegra30 Ouya game console once system-wide DVFS is enabled in a device-tree.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-667 CWE-667

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.5 — 5.10.37
linux	linux_kernel	5.11 — 5.11.21
linux	linux_kernel	5.12 — 5.12.4

References

Advisories & Patches

https://git.kernel.org/stable/c/a1ad124c836816fac8bd5e461d36eaf33cee4e24 https://git.kernel.org/stable/c/dc4452867200fa94589b382740952b58aa1c3e6c https://git.kernel.org/stable/c/ef85bb582c41524e9e68dfdbde48e519dac4ab3d https://git.kernel.org/stable/c/ff39adf5d31c72025bba799aec69c5c86d81d549 https://git.kernel.org/stable/c/a1ad124c836816fac8bd5e461d36eaf33cee4e24 https://git.kernel.org/stable/c/dc4452867200fa94589b382740952b58aa1c3e6c https://git.kernel.org/stable/c/ef85bb582c41524e9e68dfdbde48e519dac4ab3d https://git.kernel.org/stable/c/ff39adf5d31c72025bba799aec69c5c86d81d549

Frequently Asked Questions

What is CVE-2021-47067? +

In the Linux kernel, the following vulnerability has been resolved: soc/tegra: regulators: Fix locking up when voltage-spread is out of range Fix voltage coupler lockup which happens when voltage-spread is out of range due to a bug in the code. The max-spread requirement shall be accounted when CPU regulator doesn't have consumers. This problem is observed on Tegra30 Ouya game console once system-wide DVFS is enabled in a device-tree. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47067? +

CVE-2021-47067 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2021-47067? +

CVE-2021-47067 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2021-47067? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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