r0 = socket$inet6_udp(0xa, 0x2, 0x0)
sendmmsg$sock(r0, &(0x7f0000008640)=[{{&(0x7f00000019c0)=@in={0x2, 0x4e21, @empty}, 0x80, 0x0, 0x0, &(0x7f0000001b40)=[@mark={{0x14}}], 0x18}}], 0x1, 0x0)