/usr/lib/dracut/modules.d/90mdraid/ is in dracut-core 047-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/dracut/modules.d/90mdraid/59-persistent-storage-md.rules
/usr/lib/dracut/modules.d/90mdraid/65-md-incremental-imsm.rules
/usr/lib/dracut/modules.d/90mdraid/md-noddf.sh
/usr/lib/dracut/modules.d/90mdraid/md-noimsm.sh
/usr/lib/dracut/modules.d/90mdraid/md-shutdown.sh
/usr/lib/dracut/modules.d/90mdraid/mdmon-pre-shutdown.sh
/usr/lib/dracut/modules.d/90mdraid/mdmon-pre-udev.sh
/usr/lib/dracut/modules.d/90mdraid/mdraid-cleanup.sh
/usr/lib/dracut/modules.d/90mdraid/mdraid-needshutdown.sh
/usr/lib/dracut/modules.d/90mdraid/mdraid-waitclean.sh
/usr/lib/dracut/modules.d/90mdraid/mdraid_start.sh
/usr/lib/dracut/modules.d/90mdraid/module-setup.sh
/usr/lib/dracut/modules.d/90mdraid/parse-md.sh