Corpus for mkdir:

Coverage	Program
7100	perf_event_open-ioctl$SECCOMP_IOCTL_NOTIF_RECV-syz_open_procfs-readv-readv-readv-syz_open_procfs-ioctl$FIONREAD-ioctl$AUTOFS_DEV_IOCTL_PROTOVER-getdents-sendfile-fsetxattr$trusted_overlay_nlink-syz_mount_image$ext4-mkdir-openat2-syz_open_dev$tty20-fsetxattr$security_selinux-write$P9_RXATTRCREATE-mkdir-unshare
4114	syz_mount_image$ext4-mount-mkdir
915	perf_event_open-syz_mount_image$ext4-mount-mkdir