r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmmsg$inet6(r0, &(0x7f0000003800)=[{{&(0x7f0000000180)={0xa, 0x4e22, 0x0, @empty}, 0x1c, 0x0}}, {{&(0x7f0000000380)={0x2, 0x4e20, 0x0, @private0}, 0x1c, 0x0, 0x0, &(0x7f0000000000)=[@pktinfo={{0x24, 0x29, 0x32, {@mcast1}}}], 0x28}}], 0x2, 0x0)