From: Jeff Dike <jdike@addtoit.com>
To: Blaisorblade <blaisorblade@yahoo.it>
Cc: user-mode-linux-devel@lists.sourceforge.net,
Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [uml-devel] [PATCH 04/11] uml - hostfs: avoid possible escapes from hostfs=.
Date: Mon, 5 Mar 2007 18:07:11 -0500 [thread overview]
Message-ID: <20070305230711.GA9525@ccure.user-mode-linux.org> (raw)
In-Reply-To: <200703052359.13612.blaisorblade@yahoo.it>
On Mon, Mar 05, 2007 at 11:59:13PM +0100, Blaisorblade wrote:
> I gave a look, and it's nice. Except that maybe "escapes_jail" would be a
> clearer name (there's confusion about the subject of "escaping").
Feel free to change the name.
> Also, what about concurrent UML threads caring about current directory? I
> know that without SMP/preemption we can't have this problem, but
> when I see this I count a future bug unless this is checked (I think I
> reason mathematically about correctness, even if not formally).
Good point, yes this does need fixing for SMP.
Jeff
--
Work email - jdike at linux dot intel dot com
next prev parent reply other threads:[~2007-03-05 23:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-05 20:42 [PATCH 00/11] Uml simple fixes Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:48 ` [PATCH 01/11] uml: code convention cleanup of a file Paolo 'Blaisorblade' Giarrusso
2007-03-05 21:55 ` Jeff Dike
2007-03-05 20:49 ` [PATCH 02/11] uml - hostfs: fix double free Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 03/11] uml - hostfs: make hostfs= option work as a jail, as intended Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 04/11] uml - hostfs: avoid possible escapes from hostfs= Paolo 'Blaisorblade' Giarrusso
2007-03-05 22:03 ` Jeff Dike
2007-03-05 22:59 ` [uml-devel] " Blaisorblade
2007-03-05 23:07 ` Jeff Dike [this message]
2007-03-05 20:49 ` [PATCH 05/11] hostfs: rename some vars for clarity Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 06/11] uml: fix a memory leak in the multicast driver Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 07/11] uml: remove dead code about os_usr1_signal() and os_usr1_process() Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 08/11] uml: mark both consoles as CON_ANYTIME Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 09/11] uml: fix confusion irq early reenabling Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 10/11] uml - activate_fd: return ENOMEM only when appropriate Paolo 'Blaisorblade' Giarrusso
2007-03-05 20:49 ` [PATCH 11/11] uml: fix errno usage Paolo 'Blaisorblade' Giarrusso
2007-03-05 22:06 ` [PATCH 00/11] Uml simple fixes Jeff Dike
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