Threats tagged 'ghsa-fx27-pfff-j2g5'

A vulnerability in the Linux kernel's drm_exec locking mechanism could cause an infinite loop when handling contended objects with zero num_objects. This occurs because drm_exec_prepare_array() returns success without properly clearing contention state when num_objects is zero, leading to a spin loop in certain driver operations such as amdgpu's userq signal/wait ioctls. The issue has been fixed by ensuring drm_exec_prepare_array() calls drm_exec_lock_contended() even when num_objects is zero to clear pending contention.