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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Ram <linuxram@us.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>,
	jamie@shareable.org, ericvh@gmail.com, 7eggert@gmx.de,
	linux-fsdevel@vger.kernel.org,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	smfrench@austin.rr.com, hch@infradead.org
Subject: Re: [RCF] [PATCH] unprivileged mount/umount
Date: Fri, 13 May 2005 19:44:23 +0100	[thread overview]
Message-ID: <1116009860.1444.497.camel@localhost.localdomain> (raw)
In-Reply-To: <1116003238.6248.367.camel@localhost>

> Right but this fix disallows fchdir into a directory belonging to
> a different namespace.  And hence would disallow the ability to
> cross mount across namespaces.

A helper can still pass file handles for you, you've changed the
semantics a little (and I'm not clear if there is a need to) but I don't
see it serves any fundamental purpose. Historical experience is that
chroot exiting via fchdir is actually useful



  parent reply	other threads:[~2005-05-13 18:53 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 [this message]
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
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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