r0 = socket$inet6_udp(0xa, 0x2, 0x0) sendmmsg$inet6(r0, &(0x7f0000002840)=[{{&(0x7f0000000000)={0xa, 0x4e20, 0x0, @loopback}, 0x1c, 0x0, 0x0, &(0x7f0000000480)=[@flowinfo={{0x14, 0x29, 0xb, 0x3}}, @dontfrag={{0x14}}], 0x30}}], 0x1, 0x4008000)