Flush returning "Receive: netlink receive: recvmsg: no buffer space available"

I observed that when we combine multiple messages and call Flush, the Flush may fail (with error "Receive: netlink receive: recvmsg: no buffer space available") if the message payload crosses netlink buffer size.
Currently Flush() doesn't handle it? is application supposed to handle it? is there any API exposed from which application can know if the netlink message size is exceeded?