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From: Jamie Lokier <jamie@shareable.org>
To: Miklos Szeredi <miklos@szeredi.hu>
Cc: 7eggert@gmx.de, ericvh@gmail.com, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, smfrench@austin.rr.com,
	hch@infradead.org
Subject: Re: [RCF] [PATCH] unprivileged mount/umount
Date: Wed, 11 May 2005 22:32:18 +0100	[thread overview]
Message-ID: <20050511213218.GE5093@mail.shareable.org> (raw)
In-Reply-To: <E1DVydB-0002RF-00@dorka.pomaz.szeredi.hu>

Miklos Szeredi wrote:
> > I don't see the purpose of current->namespace and the associated mount
> > restrictions at all.  I asked Al Viro what it's for, but haven't seen
> > a reply :(  IMHO current->namespace should simply be removed, because the
> > "current namespace" is represented just fine by
> > current->fs->rootmnt->mnt_namespace.
> 
> I'll look at what it would take to remove current->namespace.

The security implications don't seem to be important.  If you don't
want someone to access a namespace, then don't make it accessible.

But knowing Al it might exist for some subtle locking reason.  Be sure
to study the locking carefully :)

-- Jamie

  reply	other threads:[~2005-05-11 21:32 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <406SQ-5P9-5@gated-at.bofh.it>
     [not found] ` <40rNB-6p8-3@gated-at.bofh.it>
     [not found]   ` <40t37-7ol-5@gated-at.bofh.it>
     [not found]     ` <42VeB-8hG-3@gated-at.bofh.it>
     [not found]       ` <42WNo-1eJ-17@gated-at.bofh.it>
2005-05-11 16:41         ` [RCF] [PATCH] unprivileged mount/umount Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org>
2005-05-11 17:07           ` Jamie Lokier
2005-05-11 18:49             ` Miklos Szeredi
2005-05-11 19:05               ` serue
2005-05-11 19:46                 ` Bodo Eggert
2005-05-11 20:40                   ` Miklos Szeredi
2005-05-11 21:11                 ` Jamie Lokier
2005-05-12  3:05                   ` serue
2005-05-11 19:35               ` Ram
2005-05-11 20:31                 ` Miklos Szeredi
2005-05-11 21:28                 ` Jamie Lokier
2005-05-11 22:42                   ` Ram
2005-05-11 22:58                     ` Eric Van Hensbergen
2005-05-12  1:02                       ` Jamie Lokier
2005-05-12  2:18                         ` Eric Van Hensbergen
2005-05-12  6:45                           ` Jamie Lokier
2005-05-12 13:23                             ` Eric Van Hensbergen
2005-05-12 13:47                               ` serue
2005-05-12 15:16                               ` Jamie Lokier
2005-05-12 12:51                                 ` serue
2005-05-12 18:51                                 ` Miklos Szeredi
2005-05-12 19:56                                   ` Jamie Lokier
2005-05-13  8:55                                     ` Miklos Szeredi
2005-05-13  1:10                                   ` Ram
2005-05-13  6:06                                     ` Miklos Szeredi
2005-05-13  7:25                                     ` Ram
2005-05-13  8:59                                       ` Ram
2005-05-13  9:10                                         ` Miklos Szeredi
2005-05-13 16:53                                           ` Ram
2005-05-13 17:14                                             ` Miklos Szeredi
2005-05-13 18:44                                             ` Alan Cox
2005-05-13 20:56                                     ` Bryan Henderson
2005-05-12  0:59                     ` Jamie Lokier
2005-05-13  6:41                       ` Ram
2005-05-11 21:09               ` Jamie Lokier
2005-05-11 21:20                 ` Miklos Szeredi
2005-05-11 21:32                   ` Jamie Lokier [this message]
2005-05-11 19:32             ` Bodo Eggert
2005-05-11 21:23               ` Jamie Lokier
2005-05-11 21:34                 ` Miklos Szeredi
2005-05-11 21:36                   ` Jamie Lokier
2005-05-12  3:08                     ` serue
2005-05-03 14:31 Miklos Szeredi
2005-05-03 17:30 ` Bill Davidsen
2005-05-04 13:08 ` Eric Van Hensbergen
2005-05-04 14:21   ` Miklos Szeredi
2005-05-04 14:51     ` Eric Van Hensbergen
2005-05-04 15:21       ` Miklos Szeredi
2005-05-11  8:51     ` Christoph Hellwig
2005-05-11 10:31       ` Miklos Szeredi
2005-05-12 21:08         ` Bryan Henderson
2005-05-13  5:47           ` Miklos Szeredi
2005-05-13  7:19             ` Jan Hudec
2005-05-13  8:33               ` Miklos Szeredi
2005-05-13 23:09                 ` Bryan Henderson
2005-05-14  6:58                   ` Miklos Szeredi
2005-05-16 18:35                     ` Bryan Henderson
2005-05-14 11:49                   ` Jamie Lokier
2005-05-04 13:47 ` Martin Waitz
2005-05-04 14:34   ` Miklos Szeredi
2005-05-11  8:53   ` Christoph Hellwig
2005-05-11  8:48 ` Christoph Hellwig
2005-05-11 10:20   ` Miklos Szeredi
2005-05-16  9:34     ` Christoph Hellwig

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