Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752302Ab0DOK4X (ORCPT ); Thu, 15 Apr 2010 06:56:23 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:35932 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751731Ab0DOK4W (ORCPT ); Thu, 15 Apr 2010 06:56:22 -0400 Date: Thu, 15 Apr 2010 12:00:48 +0100 From: Alan Cox To: Michal Svoboda Cc: linux-kernel@vger.kernel.org Subject: Re: [PATCH] Kconfig: Make config Filter access to /dev/mem default y Message-ID: <20100415120048.488eb44c@lxorguk.ukuu.org.uk> In-Reply-To: <20100415063626.GG21894@myhost.felk.cvut.cz> References: <20100413025228.GC10860@localhost.localdomain> <20100415063626.GG21894@myhost.felk.cvut.cz> X-Mailer: Claws Mail 3.7.5 (GTK+ 2.18.9; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 589 Lines: 16 On Thu, 15 Apr 2010 08:36:26 +0200 Michal Svoboda wrote: > Xiaotian Feng wrote: > > Have you ever successfully attack by this way? If CONFIG_STRICT_DEVMEM > > is not set, the /dev/mem access is filtered in pat code. > > If that option doesn't add any protection, what's it good for? PAT is x86 specific -- 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/