CVE-2025-38093: 
Linux Kernel vulnerability analysis and mitigation

CVE-2025-38093 is a vulnerability discovered in the Linux kernel affecting the GPU cooling mechanism on ARM64 devices, specifically the Qualcomm x1e80100 platform. The vulnerability was disclosed on July 2, 2025, and involves the GPU's inability to automatically throttle its speed at high temperatures (NVD).

The vulnerability stems from a design flaw where, unlike the CPU, the GPU does not have automatic speed throttling capabilities when reaching high temperatures. Under certain high GPU loads, the hardware can reach critical shutdown temperatures of 120°C. The issue specifically affects the ARM64 architecture in the device tree specifications (DTS) for Qualcomm x1e80100 platforms (NVD).

The vulnerability can lead to hardware endangerment and system instability when the GPU reaches critical temperatures of 120°C. This can result in automatic hardware shutdown and make it impossible to run certain applications, potentially causing service disruption and hardware damage (NVD).

The vulnerability has been resolved by implementing GPU cooling mechanisms similar to ACPI tables. The fix involves throttling the GPU speed when temperatures reach 95°C and implementing a polling mechanism every 200ms to monitor temperature levels (NVD).