From: Martin Mares <mj@ucw.cz>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: lmb@suse.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] private mounts
Date: Wed, 27 Apr 2005 20:25:28 +0200 [thread overview]
Message-ID: <20050427182528.GD4241@ucw.cz> (raw)
In-Reply-To: <E1DQquc-0002W6-00@dorka.pomaz.szeredi.hu>
Hello!
> So yes the check fsuid is not the perfect solution. However let me
> remind you that neither is the one with private namespace.
What I'm arguing about is that the fsuid check is obscure (it breaks
traditional semantics of file permissions [*], it doesn't allow an user
to grant access to his user mount to other users, even if the permissions
allow that and so on) and it doesn't fully solve the problem anyway.
For similar reasons, I don't advocate for private namespaces either.
The cure more likely lies in simple policy rules like the "all user mounts
belong to /mnt/usr" one, instead of putting dubious policy to the kernel.
Have a nice fortnight
--
Martin `MJ' Mares <mj@ucw.cz> http://atrey.karlin.mff.cuni.cz/~mj/
Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth
Mr. Worf, scan that ship." "Aye, Captain... 600 DPI?
next prev parent reply other threads:[~2005-04-27 18:25 UTC|newest]
Thread overview: 147+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3WVU1-2GE-7@gated-at.bofh.it>
[not found] ` <3WWn1-2ZC-5@gated-at.bofh.it>
[not found] ` <3WWn1-2ZC-3@gated-at.bofh.it>
[not found] ` <3WWwR-3hT-35@gated-at.bofh.it>
[not found] ` <3WWwU-3hT-49@gated-at.bofh.it>
[not found] ` <3WWGj-3nm-3@gated-at.bofh.it>
[not found] ` <3WWQ9-3uA-15@gated-at.bofh.it>
[not found] ` <3WWZG-3AC-7@gated-at.bofh.it>
[not found] ` <3X630-2qD-21@gated-at.bofh.it>
[not found] ` <3X8HA-4IH-15@gated-at.bofh.it>
[not found] ` <3Xagd-5Wb-1@gated-at.bofh.it>
2005-04-25 15:17 ` [PATCH] private mounts Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org>
2005-04-25 16:18 ` Ram
2005-04-25 19:10 ` Jamie Lokier
2005-04-26 9:16 ` Miklos Szeredi
2005-04-26 9:19 ` Christoph Hellwig
2005-04-26 9:22 ` Miklos Szeredi
2005-04-26 9:36 ` Christoph Hellwig
2005-04-26 9:41 ` Miklos Szeredi
2005-04-26 9:47 ` Christoph Hellwig
2005-04-26 9:53 ` Miklos Szeredi
2005-04-26 9:56 ` Christoph Hellwig
2005-04-26 10:01 ` Miklos Szeredi
2005-04-26 10:09 ` Christoph Hellwig
2005-04-26 12:08 ` Miklos Szeredi
2005-04-26 10:02 ` Christoph Hellwig
2005-04-26 13:19 ` Pavel Machek
2005-04-26 13:28 ` Miklos Szeredi
2005-04-26 20:14 ` Pavel Machek
2005-04-27 8:49 ` Miklos Szeredi
2005-04-27 9:24 ` Pavel Machek
2005-04-27 10:42 ` Miklos Szeredi
2005-04-27 11:57 ` Jan Hudec
2005-04-27 12:23 ` Miklos Szeredi
2005-04-27 12:39 ` Jan Hudec
2005-04-27 13:22 ` Miklos Szeredi
2005-04-27 14:40 ` Jamie Lokier
2005-04-27 14:58 ` Pavel Machek
2005-04-27 23:21 ` Trond Myklebust
2005-04-28 8:24 ` Pavel Machek
2005-04-28 8:28 ` Miklos Szeredi
2005-04-28 11:35 ` Trond Myklebust
2005-04-28 17:58 ` Bryan Henderson
2005-04-28 19:46 ` Trond Myklebust
2005-04-28 22:38 ` Bryan Henderson
2005-04-29 0:35 ` Trond Myklebust
2005-04-27 14:31 ` Jamie Lokier
2005-04-27 14:46 ` Miklos Szeredi
2005-04-27 14:55 ` Miklos Szeredi
2005-04-27 15:33 ` Martin Mares
2005-04-27 15:50 ` Lars Marowsky-Bree
2005-04-27 16:46 ` Martin Mares
2005-04-27 17:38 ` Miklos Szeredi
2005-04-27 17:54 ` Martin Mares
2005-04-27 18:05 ` Miklos Szeredi
2005-04-27 18:25 ` Martin Mares [this message]
2005-04-27 18:42 ` Miklos Szeredi
2005-04-28 13:08 ` Pavel Machek
2005-04-28 19:41 ` Miklos Szeredi
2005-04-28 20:21 ` Pavel Machek
2005-04-27 17:33 ` Miklos Szeredi
2005-04-27 17:39 ` Ram
2005-04-27 17:47 ` Miklos Szeredi
2005-04-27 17:55 ` Ram
2005-04-27 18:09 ` Miklos Szeredi
2005-04-27 19:40 ` Ram
2005-04-27 20:03 ` Miklos Szeredi
2005-04-27 21:38 ` Ram
2005-04-28 7:00 ` Miklos Szeredi
2005-04-28 19:30 ` Ram
2005-04-27 20:55 ` Bill Davidsen
2005-04-28 7:24 ` Miklos Szeredi
[not found] ` <20050427174641.GZ4431@marowsky-bree.de>
2005-04-27 17:52 ` Miklos Szeredi
2005-04-26 10:00 ` Andrew Morton
2005-04-26 10:04 ` Christoph Hellwig
2005-04-26 10:14 ` Andrew Morton
2005-04-26 10:38 ` Christoph Hellwig
2005-04-26 13:05 ` Eric Van Hensbergen
2005-04-26 14:14 ` Miklos Szeredi
2005-04-26 15:01 ` Eric Van Hensbergen
2005-04-26 18:55 ` Bryan Henderson
2005-04-26 9:30 ` Martin Mares
2005-04-25 19:02 ` Bryan Henderson
2005-04-26 8:58 ` Jan Hudec
2005-04-26 11:48 ` Bodo Eggert
2005-04-26 17:10 ` Bryan Henderson
2005-04-26 20:08 ` Bodo Eggert
2005-04-26 22:07 ` Bryan Henderson
2005-04-27 8:18 ` Bodo Eggert
2005-04-25 19:03 ` Jamie Lokier
2005-04-26 9:05 ` Jan Hudec
2005-04-26 11:46 ` Bodo Eggert
2005-05-10 18:28 Nir Tzachar
2005-05-10 19:15 ` Jan Hudec
-- strict thread matches above, loose matches on Subject: below --
2005-04-24 20:08 Miklos Szeredi
2005-04-24 20:13 ` Al Viro
2005-04-24 20:45 ` Miklos Szeredi
2005-04-24 20:18 ` Christoph Hellwig
2005-04-24 20:50 ` Miklos Szeredi
2005-04-24 20:54 ` Al Viro
2005-04-24 20:59 ` Miklos Szeredi
2005-04-24 21:06 ` Christoph Hellwig
2005-04-24 21:12 ` Jamie Lokier
2005-04-24 21:06 ` Al Viro
2005-04-24 21:15 ` Miklos Szeredi
2005-04-24 21:19 ` Al Viro
2005-04-24 21:29 ` Miklos Szeredi
2005-04-24 21:39 ` Jamie Lokier
2005-04-25 7:10 ` Jan Hudec
2005-04-25 9:58 ` Miklos Szeredi
2005-04-25 11:45 ` Jan Hudec
2005-04-30 8:35 ` Christoph Hellwig
2005-04-30 9:25 ` Miklos Szeredi
2005-04-30 9:42 ` Jamie Lokier
2005-04-30 10:14 ` Miklos Szeredi
2005-04-30 14:36 ` Jamie Lokier
2005-04-30 15:59 ` Miklos Szeredi
2005-04-30 16:42 ` Jamie Lokier
2005-04-30 17:07 ` Miklos Szeredi
2005-04-30 18:20 ` Olivier Galibert
2005-04-30 23:58 ` Jamie Lokier
2005-05-01 2:39 ` Ram
2005-04-30 23:54 ` Jamie Lokier
2005-05-01 5:56 ` Miklos Szeredi
2005-05-01 6:39 ` Miklos Szeredi
2005-05-01 15:41 ` Eric Van Hensbergen
2005-05-11 9:00 ` Christoph Hellwig
2005-05-11 10:42 ` Miklos Szeredi
2005-04-24 21:43 ` Jamie Lokier
2005-04-25 7:14 ` Jan Hudec
2005-04-27 9:14 ` Helge Hafting
2005-04-25 9:48 ` Olivier Galibert
2005-04-25 16:37 ` Tim Hockin
2005-04-30 8:37 ` Christoph Hellwig
2005-04-25 21:09 ` Bryan Henderson
2005-04-24 21:38 ` Jamie Lokier
2005-04-24 22:20 ` Ram
2005-04-24 22:22 ` Jamie Lokier
2005-04-25 6:00 ` Miklos Szeredi
2005-04-25 6:41 ` Ram
2005-04-25 9:55 ` Miklos Szeredi
2005-04-25 7:22 ` Jan Hudec
2005-04-25 10:08 ` Miklos Szeredi
2005-04-25 15:20 ` Pavel Machek
2005-04-25 19:07 ` Jamie Lokier
2005-04-26 9:29 ` Pavel Machek
2005-04-26 14:07 ` Jamie Lokier
2005-04-28 13:28 ` Eric Van Hensbergen
2005-04-28 19:22 ` Jamie Lokier
2005-04-28 13:47 ` Eric Van Hensbergen
2005-04-28 19:20 ` Jamie Lokier
2005-04-28 19:39 ` Ram
2005-04-28 22:08 ` Jamie Lokier
2005-04-29 7:57 ` Ram
2005-04-29 14:13 ` Miklos Szeredi
2005-04-29 14:42 ` Jamie Lokier
2005-04-30 8:33 ` Christoph Hellwig
2005-04-30 16:47 ` Ram
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