r0 = syz_open_dev$tty20(0xc, 0x4, 0x1)
ioctl$KDENABIO(r0, 0x4b36)
syz_mount_image$vfat(0x0, 0x0, 0x0, 0x500, &(0x7f0000001500)=[{0x0}], 0x0, 0x0)