r0 = socket$inet6_udplite(0xa, 0x2, 0x88)
r1 = openat$ttyS3(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0)
ioctl$TIOCVHANGUP(r1, 0x5437, 0x0)
dup2(r0, r1)