r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$inet6(r0, &(0x7f0000000080)={0xa, 0x0, 0x0, @loopback}, 0x1c)
sendmmsg$inet6(r0, &(0x7f0000007b00)=[{{0x0, 0x0, 0x0}}, {{0x0, 0x0, 0x0, 0x0, &(0x7f0000000740)=[@flowinfo={{0x14, 0x29, 0xb, 0x7fffffff}}], 0x18}}], 0x2, 0x0)