> > >>
> > >> - users can use bind mounts without having to pre-configure them in
> > >>   /etc/fstab
> > >>
> > 
> > This is by far the biggest concern I see.  I think the security 
> > implication of allowing anyone to do bind mounts are poorly understood.
> 
> And especially so since there is no way for a filesystem module to veto
> such requests.

The filesystem can't veto initial mounts based on destination either.
I don't think it's up to the filesystem to police bind/move mounts in
any way.

Miklos
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