Comment 2 for bug 885027

I dont see how 1-3 are security vulnerabilities. 4 is a vulnerability only if
mount itself is vulnerable to command line injection. 5 is indeed a
vulnerability, but is neccesitated by the non uniformity of linux filesystems
(mount, eject can be located anywhere). 5 can be mitigated by first checking
for mount and eject in "standard" locations and only then trying all of PATH,
changes for that will be in the next release.