Dropping all further discussions on this thread, as a RFC for a new string-copy method has been posted at : https://lore.kernel.org/linux-hardening/CAHP4M8U=0aTHgfREGJpSboV6J4X+E3Y6+H_kb-PvXxDKtV=n-g@xxxxxxxxxxxxxx/T/#t which, if accepted, will make the clients' lives a lot easier.
