What’s Vulnerable › Vulnerabilities

CVE-2021-47431: drm/amdgpu: fix gart.bo pin_count leak

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-21 · updated 2026-08-11

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.

Affected products

• Linux kernel: from 4.2 before 5.4.154; from 5.5 before 5.10.74; from 5.11 before 5.14.13; 5.15-rc1, 5.15-rc2, 5.15-rc3 — fixed in 5.10.74, 5.14.13, 5.4.154

How to fix

Upgrade to a fixed version: Linux kernel 5.10.74, 5.14.13, 5.4.154. Check the vendor advisory for mitigations.

References

• 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

Get alerted when CVE-2021-47431 or the next vulnerability affects your stack