"The file system mounted on /tmp/z in the example contains 2^50
directories". heh.
I do wonder how realistic this problem is in real life.
That's a fair concern, although I was trying this as part
of evaluating how much someone could hose a system
if we let them mount arbitrary FUSE servers. And the
answer is: they could make it completely unusable,
requiring reboot.
I ran a later test that printed how deep it got into
the file tree and it was only a few hundred thousand
if I recall correctly. A determined attacker might even
manage to do this in a normal file system.
But sure, it's not a common case. ;-)
Russ
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