r0 = socket$inet_udp(0x2, 0x2, 0x0)
setsockopt$inet_mreq(r0, 0x0, 0x23, &(0x7f0000000640)={@multicast2, @dev}, 0x8)
setsockopt$inet_MCAST_LEAVE_GROUP(r0, 0x0, 0x2d, &(0x7f0000000140)={0x3ff, {{0x2, 0x0, @multicast1}}}, 0x88)