r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket$netlink(0x10, 0x3, 0x0) setsockopt$netlink_NETLINK_BROADCAST_ERROR(r1, 0x10e, 0xc, &(0x7f0000000000)=0x5, 0xff4d) r2 = fcntl$dupfd(r1, 0x0, r0) sendmsg$nl_generic(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={0x28, 0x52, 0xc21, 0x0, 0x0, {0x2}, [@typed={0x14, 0x8, 0x0, 0x0, @ipv6=@mcast1}]}, 0x28}}, 0x0)