From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <6141d2bd887f96584eaafdd2bdd5c1d0@collyer.net> To: 9fans@cse.psu.edu Subject: Re: [9fans] Acme mailreader - now: User mode filesystems in linux Date: Fri, 17 Dec 2004 02:22:22 -0800 From: geoff@collyer.net In-Reply-To: <20041217152456.3f377069.martin_ml@parvat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Topicbox-Message-UUID: 19d52a1a-eace-11e9-9e20-41e7f4b1d025 Someone at the 9bof claimed that at least one of the BSDs already permits users to mount things on any directory for which they have write permission. I suspect that the policy actually needs to be a little stricter than that; you don't want people mounting (system-wide) on /tmp. Perhaps any directory that you own would make more sense. But we also heard that the maintainers of at least one of the other BSDs or Linux have a religious aversion to users mounting anything. Certainly one would want to think through the interactions of set-id and user mounts.