CVE-2021-47431

MEDIUM

Linux Kernel - Resource Leak in AMD GPU GART BO Pin Count

Title source: llm

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.

References (4)

Core 4

Core References

Patch

https://git.kernel.org/stable/c/83d857d6b0967b6709cd38750c3ce2ed8ced1a95

Patch

https://git.kernel.org/stable/c/621ddffb70db824eabd63d18ac635180fe9500f9

Patch

https://git.kernel.org/stable/c/18d1c5ea3798ba42cfa0f8b2264d873463facb03

Patch

https://git.kernel.org/stable/c/66805763a97f8f7bdf742fc0851d85c02ed9411f

Scores

CVSS v3 5.5

EPSS 0.0022

EPSS Percentile 12.9%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

Status published

Products (12)

Linux/Linux < 4.2

Linux/Linux 4.2

Linux/Linux 5.10.74 - 5.10.*

Linux/Linux 5.14.13 - 5.14.*

Linux/Linux 5.15

Linux/Linux 5.4.154 - 5.4.*

Linux/Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 - 18d1c5ea3798ba42cfa0f8b2264d873463facb03

Linux/Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 - 621ddffb70db824eabd63d18ac635180fe9500f9

Linux/Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 - 66805763a97f8f7bdf742fc0851d85c02ed9411f

Linux/Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 - 83d857d6b0967b6709cd38750c3ce2ed8ced1a95

... and 2 more

Published May 21, 2024

Tracked Since Feb 18, 2026