From: Al Viro <viro@ftp.linux.org.uk>
To: Miloslav Semler <majkls@prepere.com>
Cc: Kyle Moffett <mrmacman_g4@mac.com>,
David Newall <david@davidnewall.com>,
Adrian Bunk <bunk@kernel.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
"Serge E. Hallyn" <serge@hallyn.com>,
Bill Davidsen <davidsen@tmr.com>,
Philipp Marek <philipp@marek.priv.at>,
7eggert@gmx.de, bunk@fs.tum.de, linux-kernel@vger.kernel.org
Subject: Re: Chroot bug
Date: Wed, 26 Sep 2007 14:42:23 +0100 [thread overview]
Message-ID: <20070926134223.GO8181@ftp.linux.org.uk> (raw)
In-Reply-To: <46FA5A85.20407@prepere.com>
On Wed, Sep 26, 2007 at 03:11:33PM +0200, Miloslav Semler wrote:
> >As for the nested-chroot() bit, the root user inside of a chroot is
> >always allowed to chroot(). This is necessary for test-suites for
> >various distro installers, chroot once to enter the installer playpen,
> >installer chroots again to configure the test-installed-system. Once
> >you allow a second chroot, you're back at the "can't reliably and
> >efficiently track directory sub-tree members" problem.
> >
> >So if you think it can and should be fixed, then PROVIDE THE CODE.
> Miloslav Semler
man openat
This is really pointless, anyway - any code that expects chroot to be
root-proof is terminally broken.
next prev parent reply other threads:[~2007-09-26 13:42 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <952DN-83o-31@gated-at.bofh.it>
[not found] ` <954cl-29C-3@gated-at.bofh.it>
[not found] ` <95ctn-74b-15@gated-at.bofh.it>
[not found] ` <95cMH-7um-19@gated-at.bofh.it>
[not found] ` <95gdA-4OZ-7@gated-at.bofh.it>
2007-09-20 11:13 ` sys_chroot+sys_fchdir Fix Bodo Eggert
2007-09-20 11:59 ` Philipp Marek
2007-09-20 12:52 ` majkls
2007-09-20 16:06 ` David Newall
2007-09-20 16:17 ` Philipp Marek
2007-09-20 18:02 ` David Newall
2007-09-20 20:53 ` Bill Davidsen
2007-09-21 8:29 ` David Newall
2007-09-24 21:32 ` Serge E. Hallyn
2007-09-24 22:04 ` David Newall
2007-09-24 23:00 ` Serge E. Hallyn
2007-09-25 7:45 ` David Newall
2007-09-25 11:49 ` Serge E. Hallyn
2007-09-25 13:58 ` David Newall
2007-09-25 15:10 ` Chroot bug (was: sys_chroot+sys_fchdir Fix) David Newall
2007-09-25 15:20 ` Jan Engelhardt
2007-09-25 15:39 ` Chroot bug Miloslav Semler
2007-09-25 15:41 ` David Newall
2007-09-25 15:48 ` Jan Engelhardt
2007-09-25 16:19 ` Miloslav Semler
2007-09-25 16:52 ` Jan Engelhardt
2007-09-25 17:00 ` Miloslav Semler
2007-09-25 17:05 ` Jan Engelhardt
2007-09-25 17:09 ` Miloslav Semler
2007-09-25 17:09 ` Al Viro
2007-09-25 17:19 ` Miloslav Semler
2007-09-25 16:53 ` Serge E. Hallyn
2007-09-25 20:51 ` David Newall
2007-09-25 15:30 ` Chroot bug (was: sys_chroot+sys_fchdir Fix) Alan Cox
2007-09-25 15:35 ` Chroot bug David Newall
2007-09-25 15:48 ` Alan Cox
2007-09-25 15:47 ` Jan Engelhardt
2007-09-25 23:50 ` David Newall
2007-09-26 0:18 ` Alan Cox
2007-09-26 10:24 ` David Newall
2007-09-26 10:47 ` Alan Cox
2007-09-26 11:06 ` David Newall
2007-09-26 11:20 ` Alan Cox
[not found] ` <46FA41B4.9040104@prepere.com>
[not found] ` <20070926123522.54ffd56f@the-village.bc.nu>
2007-09-26 11:34 ` Miloslav Semler
2007-09-26 14:09 ` Alan Cox
2007-09-26 13:13 ` Bongani Hlope
2007-09-26 0:55 ` Adrian Bunk
2007-09-26 5:21 ` Kyle Moffett
2007-09-26 5:25 ` Willy Tarreau
2007-09-26 10:27 ` David Newall
2007-09-26 10:45 ` Olivier Galibert
2007-09-26 11:13 ` David Newall
2007-09-26 13:18 ` linux-os (Dick Johnson)
2007-09-26 15:02 ` Olivier Galibert
2007-09-26 12:54 ` Kyle Moffett
2007-09-26 13:11 ` Miloslav Semler
2007-09-26 13:42 ` Al Viro [this message]
2007-09-26 14:51 ` Miloslav Semler
2007-09-26 14:02 ` Kyle Moffett
2007-09-26 15:01 ` Miloslav Semler
2007-09-27 13:49 ` Jiri Kosina
2007-09-25 16:33 ` Arjan van de Ven
2007-09-25 15:32 ` Chroot bug (was: sys_chroot+sys_fchdir Fix) Adrian Bunk
2007-09-25 15:43 ` Chroot bug Miloslav Semler
2007-09-25 16:02 ` Adrian Bunk
2007-09-26 19:23 ` Chroot bug (was: sys_chroot+sys_fchdir Fix) Bodo Eggert
2007-09-24 23:02 ` sys_chroot+sys_fchdir Fix Serge E. Hallyn
[not found] ` <95UE2-1oR-19@gated-at.bofh.it>
[not found] ` <95V72-2ly-17@gated-at.bofh.it>
[not found] ` <97pG8-3B5-47@gated-at.bofh.it>
[not found] ` <97sX2-p1-3@gated-at.bofh.it>
2007-09-26 9:38 ` Nick Craig-Wood
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