From: Frank van Maarseveen <frankvm@frankvm.com>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: frankvm@frankvm.com, akpm@osdl.org, aia21@cam.ac.uk,
arjan@infradead.org, linux-kernel@vger.kernel.org
Subject: Re: FUSE merging?
Date: Fri, 1 Jul 2005 20:04:15 +0200 [thread overview]
Message-ID: <20050701180415.GA7755@janus> (raw)
In-Reply-To: <E1DoOwc-000368-00@dorka.pomaz.szeredi.hu>
On Fri, Jul 01, 2005 at 07:04:50PM +0200, Miklos Szeredi wrote:
> I'm not saying this is a problem, but also I don't see any
> overwhelming reason to not allow user mounts over non-leaf
> directories.
All things considered I'd still prefer forbidding FUSE mounts on non-leaf
dirs. For name space sanity. And it may be easier to get the whole thing
accepted:
- One could argue that the existing name space is extended rather than
changed [for a subset of processes], what Al Viro seems to reject.
- The processes which cannot be ptraced/sent a signal by the mount
owner are not "forced" to traverse the FUSE mount for the sake of
name space invariancy, with all associated security problems: they
can see everything up to the leaf node of all the usual mounts.
But put otherwise: is there a compelling reason to permit FUSE mounts on
non-leaf nodes?
Can FUSE mount on a file like NFS?
What is your opinion about replacing the ptrace check by a signal check
(later on, no hurry)?
--
Frank
next prev parent reply other threads:[~2005-07-01 18:04 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-30 9:19 FUSE merging? Miklos Szeredi
2005-06-30 9:27 ` Andrew Morton
2005-06-30 9:51 ` Miklos Szeredi
2005-06-30 10:00 ` Arjan van de Ven
2005-06-30 10:12 ` Miklos Szeredi
2005-06-30 10:20 ` Arjan van de Ven
2005-06-30 10:24 ` Miklos Szeredi
2005-06-30 19:39 ` Avuton Olrich
2005-07-01 6:23 ` Miklos Szeredi
2005-06-30 11:13 ` Anton Altaparmakov
2005-06-30 19:46 ` Andrew Morton
2005-06-30 20:00 ` Andrew Morton
2005-07-01 6:40 ` Miklos Szeredi
2005-06-30 22:28 ` Frank van Maarseveen
2005-07-01 6:58 ` Miklos Szeredi
2005-07-01 9:24 ` Frank van Maarseveen
2005-07-01 10:27 ` Miklos Szeredi
2005-07-01 12:00 ` Frank van Maarseveen
2005-07-01 12:36 ` Miklos Szeredi
2005-07-01 13:05 ` Frank van Maarseveen
2005-07-01 13:21 ` Miklos Szeredi
2005-07-01 15:20 ` Frank van Maarseveen
2005-07-01 17:04 ` Miklos Szeredi
2005-07-01 18:04 ` Frank van Maarseveen [this message]
2005-07-01 19:35 ` Jeremy Maitin-Shepard
2005-07-02 14:49 ` Miklos Szeredi
2005-07-02 16:00 ` Frank van Maarseveen
2005-07-03 6:16 ` Miklos Szeredi
2005-07-03 11:25 ` Frank van Maarseveen
2005-07-03 13:24 ` Miklos Szeredi
2005-07-03 13:50 ` Frank van Maarseveen
2005-07-03 14:03 ` Miklos Szeredi
2005-07-03 14:10 ` FUSE merging? (2) Frank van Maarseveen
2005-07-03 15:47 ` Miklos Szeredi
2005-07-03 19:36 ` Frank van Maarseveen
2005-07-04 8:56 ` Miklos Szeredi
2005-07-04 9:59 ` Frank van Maarseveen
2005-07-04 10:27 ` Miklos Szeredi
2005-07-04 11:26 ` Frank van Maarseveen
2005-07-01 6:36 ` FUSE merging? Miklos Szeredi
2005-07-01 6:50 ` Andrew Morton
2005-07-01 7:07 ` Miklos Szeredi
2005-07-01 7:14 ` Andrew Morton
2005-07-01 7:27 ` Miles Bader
2005-07-01 7:38 ` Miklos Szeredi
2005-07-01 8:02 ` Andrew Morton
2005-07-01 10:11 ` Miklos Szeredi
2005-07-01 11:29 ` Andrew Morton
2005-07-01 12:00 ` Miklos Szeredi
2005-07-01 12:53 ` Anton Altaparmakov
2005-07-01 13:07 ` Anton Altaparmakov
2005-07-01 13:51 ` Frank van Maarseveen
2005-07-01 13:29 ` Eric Van Hensbergen
2005-07-01 16:45 ` Matthias Urlichs
2005-07-01 12:08 ` Frank van Maarseveen
2005-07-01 13:21 ` Eric Van Hensbergen
2005-07-01 13:53 ` Miklos Szeredi
2005-07-01 14:18 ` Eric Van Hensbergen
2005-07-01 14:31 ` Miklos Szeredi
2005-07-02 10:01 ` Eric W. Biederman
2005-07-02 14:58 ` Miklos Szeredi
2005-07-02 16:43 ` Eric Van Hensbergen
2005-07-02 17:33 ` Eric W. Biederman
2005-07-03 19:39 ` Pavel Machek
2005-07-04 8:38 ` Miklos Szeredi
[not found] ` <20050704084900.GG15370@elf.ucw.cz>
2005-07-04 9:02 ` Miklos Szeredi
2005-07-04 10:46 ` Pekka Enberg
2005-07-01 12:37 ` bert hubert
2005-07-01 7:46 ` Frederik Deweerdt
2005-07-01 9:47 ` Miklos Szeredi
2005-07-01 9:36 ` Frank van Maarseveen
2005-07-01 10:45 ` Miklos Szeredi
2005-07-01 11:34 ` Frank van Maarseveen
2005-06-30 10:16 ` Miklos Szeredi
2005-06-30 16:30 ` Pavel Machek
-- strict thread matches above, loose matches on Subject: below --
2005-09-02 22:02 Miklos Szeredi
2005-09-02 22:34 ` Andrew Morton
2005-09-03 0:34 ` Kasper Sandberg
2005-09-03 5:31 ` Miklos Szeredi
2005-09-03 6:40 ` Andrew Morton
2005-09-03 7:23 ` Miklos Szeredi
2005-09-03 13:29 ` Eric Van Hensbergen
2005-09-03 14:20 ` Miklos Szeredi
2005-09-03 15:01 ` Eric Van Hensbergen
2005-09-03 15:38 ` Miklos Szeredi
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