Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261485AbVDZKRO (ORCPT ); Tue, 26 Apr 2005 06:17:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261483AbVDZKRL (ORCPT ); Tue, 26 Apr 2005 06:17:11 -0400 Received: from fire.osdl.org ([65.172.181.4]:32191 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S261443AbVDZKO6 (ORCPT ); Tue, 26 Apr 2005 06:14:58 -0400 Date: Tue, 26 Apr 2005 03:14:14 -0700 From: Andrew Morton To: Christoph Hellwig Cc: miklos@szeredi.hu, hch@infradead.org, jamie@shareable.org, linuxram@us.ibm.com, 7eggert@gmx.de, bulb@ucw.cz, viro@parcelfarce.linux.theplanet.co.uk, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] private mounts Message-Id: <20050426031414.260568b5.akpm@osdl.org> In-Reply-To: <20050426100412.GA30762@infradead.org> References: <3Xagd-5Wb-1@gated-at.bofh.it> <1114445923.4480.94.camel@localhost> <20050425191015.GC28294@mail.shareable.org> <20050426091921.GA29810@infradead.org> <20050426093628.GA30208@infradead.org> <20050426030010.63757c8c.akpm@osdl.org> <20050426100412.GA30762@infradead.org> X-Mailer: Sylpheed version 1.0.0 (GTK+ 1.2.10; i386-vine-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 868 Lines: 21 Christoph Hellwig wrote: > > On Tue, Apr 26, 2005 at 03:00:10AM -0700, Andrew Morton wrote: > > Not as thick as mine! Could someone please explain in small words what's > > wrong with an suid mount helper? > > Nothing per-se. What makes it bad is the contect of a userland filesystem > where the actual filesystem operations in the mounted filesystem happen > in contect of a non-privilegued user. That's one of the major points of FUSE, isn't it? So that unprivileged users can do interesting things. Or are you saying that that's a desirable objective, but it should be implemented differently? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/