cve 2025 37768

CVE-2025-37768 is a Linux kernel vulnerability in the AMDGPU DRM driver's power-management code. The flaw involves a division-by-zero error that occurs when a user-supplied fan speed value exceeds safe bounds, leading to a kernel crash and denial-of-service on affected hosts. A patch set has been released to close this vulnerability by adding proper bounds checking. This issue is relevant for Linux system administrators and security professionals managing AMD GPU-equipped systems, as it can be triggered locally to cause system instability. The tag covers the vulnerability details, affected components, and the available fix.