socket$netlink(0x10, 0x3, 0x0)
r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
ioctl$TIOCSETD(r0, 0x5423, &(0x7f0000000000)=0x2)
ioctl$TIOCSETD(0xffffffffffffffff, 0x5423, 0x0)