cve 2024 49904

CVE-2024-49904 is a Linux kernel vulnerability in the AMDGPU DRM driver that could cause a NULL pointer dereference. The issue resides in the DCN (Display Core Next) debug and logging code, where a missing list-empty check allows a deterministic denial-of-service condition. A patch has been applied to add the guard, preventing the driver from dereferencing a NULL pointer when iterating internal lists. This fix eliminates a crash that could affect the graphics driver or the entire kernel. The vulnerability is classified as a kernel robustness defect, and the patch is part of ongoing maintenance for the AMDGPU driver in the Linux kernel.