Linux Kernel a7xx Context Switching Vulnerability Leading to Denial-of-Service

A vulnerability in the Linux kernel's a7xx graphics driver context switching has been addressed. The issue arose because the driver did not properly reset context state when switching between user-space submissions. This oversight could cause one context to interfere with another, leading to incorrect functioning and potential hangs, effectively creating a denial-of-service situation, albeit without data leakage. The vulnerability was introduced during the initial a7xx driver development.

Impact

Exploitation of this vulnerability could lead to a denial-of-service condition, causing system hangs without leaking data.