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Linux Kernel SubVP Command Information Vulnerability in AMD Display Driver

Vulnerability

A vulnerability in the Linux kernel's AMD display driver can lead to a system crash when changing the display resolution to 8K in extended mode. This issue arises from a page fault caused by the driver improperly handling SubVP (Sub-Viewport) command information for display pipes, leading to an out-of-bounds array access. The vulnerability affects the Linux kernel in the stable group.

Impact

The vulnerability can cause a system restart due to a page fault, disrupting ongoing processes and potentially leading to data loss.

Reproduction

The vulnerability can be reproduced by changing the display resolution to 8K with extended mode enabled. This action triggers a page fault, causing the system to restart.

Remediation

The vulnerability has been addressed in the Linux kernel. Users can upgrade to the latest version of the stable Linux kernel to apply the fix.

Added: Dec 9, 2025, 1:35 AM
Updated: Dec 9, 2025, 1:35 AM

Vulnerability Rating

Custom Algorithm
spread
9.0
impact
2.5
exploitability
4.3
remediation
7.7
relevance
1.3
threat
4.8
urgency
2.9
incentive
1.7

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.