Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263860AbUDNSaf (ORCPT ); Wed, 14 Apr 2004 14:30:35 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264255AbUDNSaf (ORCPT ); Wed, 14 Apr 2004 14:30:35 -0400 Received: from ns.suse.de ([195.135.220.2]:10220 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S263860AbUDNSa1 (ORCPT ); Wed, 14 Apr 2004 14:30:27 -0400 Date: Wed, 14 Apr 2004 20:30:21 +0200 From: Kurt Garloff To: linux-kernel@vger.kernel.org Subject: Re: Non-Exec stack patches Message-ID: <20040414183021.GQ16701@tpkurt.garloff.de> Mail-Followup-To: Kurt Garloff , linux-kernel@vger.kernel.org References: <9AB83E4717F13F419BD880F5254709E5011EBABA@scsmsx402.sc.intel.com> <20040414094702.GC8888@mail.shareable.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="0fZkDq/H4AmqaB8D" Content-Disposition: inline In-Reply-To: <20040414094702.GC8888@mail.shareable.org> X-Operating-System: Linux 2.6.5-2-KG i686 X-PGP-Info: on http://www.garloff.de/kurt/mykeys.pgp X-PGP-Key: 1024D/1C98774E, 1024R/CEFC9215 Organization: SUSE/Novell User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1361 Lines: 41 --0fZkDq/H4AmqaB8D Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Apr 14, 2004 at 10:47:02AM +0100, Jamie Lokier wrote: > People looking at PROT_EXEC page table flags might want to be aware > that mimics the behaviour of i386: read implies and > is implied by exec, write implies read. >=20 > That might mean user-mode linux doesn't provide no-exec-stack > protection even when the underlying kernel does offer it. I'm not sure. I thought UML only runs on i386. And on i386, you have no NX feature. You can run i386 UML on AMD64 (with 64bit kernel) though. Regards, --=20 Kurt Garloff Cologne, DE=20 SUSE LINUX AG, Nuernberg, DE SUSE Labs (Head) --0fZkDq/H4AmqaB8D Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFAfYM9xmLh6hyYd04RAqq9AJ4lsOAGNBvrazp4fkmzY6nXdbr4hgCgq8JT Md22uAt533v1v0B6Gnc5AEI= =8xfi -----END PGP SIGNATURE----- --0fZkDq/H4AmqaB8D-- - 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/