Corpus for ustat:

Coverage	Program
406	syz_open_procfs-pread64-perf_event_open-write$binfmt_script-ioctl$AUTOFS_DEV_IOCTL_CATATONIC-ustat-ustat-ustat-ustat-ustat-ustat
144	perf_event_open-ustat
128	perf_event_open-ustat