Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751314AbWIYRQX (ORCPT ); Mon, 25 Sep 2006 13:16:23 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751312AbWIYRQX (ORCPT ); Mon, 25 Sep 2006 13:16:23 -0400 Received: from mail.aknet.ru ([82.179.72.26]:48901 "EHLO mail.aknet.ru") by vger.kernel.org with ESMTP id S1751309AbWIYRQW (ORCPT ); Mon, 25 Sep 2006 13:16:22 -0400 Message-ID: <45180F36.8010908@aknet.ru> Date: Mon, 25 Sep 2006 21:17:42 +0400 From: Stas Sergeev User-Agent: Thunderbird 1.5.0.7 (X11/20060913) MIME-Version: 1.0 To: Arjan van de Ven Cc: Andrew Morton , Linux kernel , Valdis.Kletnieks@vt.edu Subject: Re: [patch] remove MNT_NOEXEC check for PROT_EXEC mmaps References: <45150CD7.4010708@aknet.ru> <1159059219.3093.276.camel@laptopd505.fenrus.org> In-Reply-To: <1159059219.3093.276.camel@laptopd505.fenrus.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 881 Lines: 23 Hi Arjan. Arjan van de Ven wrote: > ... to add a "security" feature? > sounds like the wrong tradeoff! There is now an ongoing discussion about that here: http://uwsg.ucs.indiana.edu/hypermail/linux/kernel/0609.2/2151.html continues here: http://uwsg.ucs.indiana.edu/hypermail/linux/kernel/0609.3/0008.html with many posts already. I'd like you to contribute to it. In particular, I would be very happy if you (or anyone else) will tell me why the noexec filesystem deny PROT_EXEC for MAP_PRIVATE, while even the R/O filesystem doesn't deny PROT_WRITE for MAP_PRIVATE? This is one of the key points of mine, but there are others too. - 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/