CVE-2026-97426
Received Received - Intake

AMDGPU SmartShift Bias PM Refcount Error in Linux Kernel

Publication date: 2026-09-24

Last updated on: 2026-09-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/pm: fix SmartShift bias sysfs store PM refcount on parse error Return the parse error before acquiring PM access.

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Meta Information

Published
2026-09-24
Last Modified
2026-09-24
Generated
2026-09-24
AI Q&A
2026-09-24
EPSS Evaluated
N/A
NVD
CVE-2026-97426
EUVD
EUVD-2026-86039

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux_kernel linux_kernel *

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Exploitability

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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a Linux kernel vulnerability in the AMD GPU power management (pm) subsystem. It involves a sysfs store function for SmartShift bias that incorrectly handles PM reference counting when a parse error occurs. The fix ensures the parse error is returned before acquiring PM access, preventing potential resource leaks or instability.

Impact Analysis

If exploited, this could lead to system instability or crashes due to improper power management handling in AMD GPUs. Users might experience graphical glitches, performance issues, or unexpected shutdowns during GPU-intensive tasks.

Mitigation Strategies

Update the Linux kernel to the latest patched version to resolve the SmartShift bias sysfs store PM refcount issue in the AMDGPU driver.

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