Dynamic Frequency Configuration Vulnerability in Linux Kernel for H616 GPU

CVE-2025-38041

What is CVE-2025-38041?

A vulnerability in the Linux kernel has been identified related to the H616 GPU's handling of dynamic frequency changes. The current implementation does not accurately support dynamic frequency configuration for the GPU PLL, leading to potential instability issues, including various crashes and hangs when attempting device Dynamic Voltage and Frequency Scaling (DVFS). Proper handling of GPU clock frequencies is essential to maintain system stability, especially during frequency changes. The implementation seeks to reparent the GPU clock to ensure consistent operational integrity during these transitions.

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