r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$PIO_CMAP(r0, 0x4b71, &(0x7f0000000080)={0x0, 0x3, 0x0, 0x7, 0x3})
writev(0xffffffffffffffff, 0x0, 0x0)