CVE-2021-47431: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix gart.bo pin_count leak gmc_v{9,10}_0_gart_disable() isn't called matched with correspoding gart_enbale function in SRIOV case. This will lead to gart.bo pin_count leak on driver unload.

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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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.2 — 5.4.154
linux	linux_kernel	5.5 — 5.10.74
linux	linux_kernel	5.11 — 5.14.13
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/18d1c5ea3798ba42cfa0f8b2264d873463facb03 https://git.kernel.org/stable/c/621ddffb70db824eabd63d18ac635180fe9500f9 https://git.kernel.org/stable/c/66805763a97f8f7bdf742fc0851d85c02ed9411f https://git.kernel.org/stable/c/83d857d6b0967b6709cd38750c3ce2ed8ced1a95 https://git.kernel.org/stable/c/18d1c5ea3798ba42cfa0f8b2264d873463facb03 https://git.kernel.org/stable/c/621ddffb70db824eabd63d18ac635180fe9500f9 https://git.kernel.org/stable/c/66805763a97f8f7bdf742fc0851d85c02ed9411f https://git.kernel.org/stable/c/83d857d6b0967b6709cd38750c3ce2ed8ced1a95

Frequently Asked Questions

What is CVE-2021-47431? +

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix gart.bo pin_count leak gmc_v{9,10}_0_gart_disable() isn't called matched with correspoding gart_enbale function in SRIOV case. This will lead to gart.bo pin_count leak on driver unload. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2021-47431? +

CVE-2021-47431 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-2021-47431? +

CVE-2021-47431 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-2021-47431? +

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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CVE-2021-47431