drm render nodes

The drm render nodes tag covers reporting about a Linux kernel vulnerability involving the Direct Rendering Manager (DRM) Graphics Execution Manager and a potentially reachable render-node interface. Publicly described impact includes local privilege escalation, where a vulnerable DRM_IOCTL_GEM_CHANGE_HANDLE operation can be accessed through a DRM render node. This archive provides context for assessing whether affected kernels are covered by vendor advisories and whether /dev/dri/renderD* devices are exposed to untrusted users or workloads. It focuses on the reported security issue and practical administrator checks rather than broader graphics topics for affected Linux systems.