Corpus for mkdir:

Coverage	Program
2732	mkdir
2710	perf_event_open-mkdir-ioctl$sock_inet_SIOCGIFADDR-mmap$IORING_OFF_SQ_RING
2559	lsetxattr$security_capability-socketpair-recvmsg-recvfrom-openat$sndtimer-ioctl$AUTOFS_DEV_IOCTL_CATATONIC-ioctl$AUTOFS_DEV_IOCTL_READY-mkdir-syz_mount_image$nfs4