Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261798AbVD0Qqz (ORCPT ); Wed, 27 Apr 2005 12:46:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261803AbVD0Qqz (ORCPT ); Wed, 27 Apr 2005 12:46:55 -0400 Received: from albireo.ucw.cz ([84.242.65.67]:44161 "EHLO albireo.ucw.cz") by vger.kernel.org with ESMTP id S261798AbVD0Qqv (ORCPT ); Wed, 27 Apr 2005 12:46:51 -0400 Date: Wed, 27 Apr 2005 18:46:52 +0200 From: Martin Mares To: Lars Marowsky-Bree Cc: Miklos Szeredi , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] private mounts Message-ID: <20050427164652.GA3129@ucw.cz> References: <20050426131943.GC2226@openzaurus.ucw.cz> <20050426201411.GA20109@elf.ucw.cz> <20050427092450.GB1819@elf.ucw.cz> <20050427143126.GB1957@mail.shareable.org> <20050427153320.GA19065@atrey.karlin.mff.cuni.cz> <20050427155022.GR4431@marowsky-bree.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050427155022.GR4431@marowsky-bree.de> User-Agent: Mutt/1.3.28i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 978 Lines: 21 Hello! > It is certainly an information leak not otherwise available. And with > the ability to change the layout underneath, you might trigger bugs in > root programs: Are they really capable of seeing the same filename > twice, or can you throw them into a deep recursion by simulating > infinitely deep directories/circular hardlinks...? Yes, it can help you trigger bugs, but all these bugs are triggerable without user filesystems as well, although it's harder to do so. Have a nice fortnight -- Martin `MJ' Mares http://atrey.karlin.mff.cuni.cz/~mj/ Faculty of Math and Physics, Charles University, Prague, Czech Rep., Earth If the government wants us to respect the law, it should set a better example. - 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/