r0 = socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$sock_inet6_SIOCADDRT(r0, 0x890b, &(0x7f0000000080)={@loopback, @dev, @local, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41b0002})