r0 = syz_open_dev$tty20(0xc, 0x4, 0x1)
r1 = syz_open_dev$tty20(0xc, 0x4, 0x1)
ioctl$TIOCCONS(r1, 0x541d)
ioctl$TIOCVHANGUP(r0, 0x5437, 0x0)