https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=866060 seems to be related, and maybe the changes in the patch for that bug are sufficient to address the concerns in this bug? (That patch as just been taken upstream.)
Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
