Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755441AbZFCUgm (ORCPT ); Wed, 3 Jun 2009 16:36:42 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753082AbZFCUgf (ORCPT ); Wed, 3 Jun 2009 16:36:35 -0400 Received: from smtp3.ultrahosting.com ([74.213.175.254]:51998 "EHLO smtp.ultrahosting.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751583AbZFCUge (ORCPT ); Wed, 3 Jun 2009 16:36:34 -0400 Date: Wed, 3 Jun 2009 16:36:19 -0400 (EDT) From: Christoph Lameter X-X-Sender: cl@gentwo.org To: Eric Paris cc: Linus Torvalds , "Larry H." , Alan Cox , linux-mm@kvack.org, Rik van Riel , linux-kernel@vger.kernel.org, pageexec@freemail.hu, jmorris@namei.org Subject: Re: Security fix for remapping of page 0 (was [PATCH] Change ZERO_SIZE_PTR to point at unmapped space) In-Reply-To: <7e0fb38c0906031316n7aeed974xf15f8af5a3b04f63@mail.gmail.com> Message-ID: References: <20090530230022.GO6535@oblivion.subreption.com> <20090603183939.GC18561@oblivion.subreption.com> <7e0fb38c0906031214lf4a2ed2x688da299e8cb1034@mail.gmail.com> <7e0fb38c0906031251h6844ea08y2dbfa09a7f46eb5f@mail.gmail.com> <7e0fb38c0906031316n7aeed974xf15f8af5a3b04f63@mail.gmail.com> User-Agent: Alpine 1.10 (DEB 962 2008-03-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 654 Lines: 20 On Wed, 3 Jun 2009, Eric Paris wrote: > > Thats easy to do but isnt it a bit weird now to configure mmap_min_addr? > > ?? The use of mmap_min_addr depends on the security configuration chose. The security model may not check at all. But we can still configure the thing. > > What about round_hint_to_min()? > > not sure what you mean.... We removed the CONFIG_SECURITY around code in there in the patch. -- 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/