r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
ioctl$sock_inet6_SIOCADDRT(r0, 0x890b, &(0x7f0000000000)={@initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, @empty, @loopback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4060000})