Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965044AbVINGaP (ORCPT ); Wed, 14 Sep 2005 02:30:15 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965045AbVINGaO (ORCPT ); Wed, 14 Sep 2005 02:30:14 -0400 Received: from smtp.osdl.org ([65.172.181.4]:54448 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S965044AbVINGaN (ORCPT ); Wed, 14 Sep 2005 02:30:13 -0400 Date: Tue, 13 Sep 2005 23:29:44 -0700 From: Chris Wright To: Horms Cc: Chris Wright , linux-kernel@vger.kernel.org, stable@kernel.org, Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Chuck Wolber , torvalds@osdl.org, akpm@osdl.org, alan@lxorguk.ukuu.org.uk, micha@debian.org Subject: Re: [patch 04/09] x86_64: avoid SMP boot up race Message-ID: <20050914062943.GP7762@shell0.pdx.osdl.net> References: <20050608234637.GG13152@shell0.pdx.osdl.net> <20050609000408.GK13152@shell0.pdx.osdl.net> <20050914031356.GA19160@verge.net.au> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050914031356.GA19160@verge.net.au> User-Agent: Mutt/1.5.6i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 694 Lines: 15 * Horms (horms@verge.net.au) wrote: > I'm wondering if anyone could comment on if this could > be conceived as a security bug. My initial instinct was > yes, but on further considertation I can't conceive > a way it could be exploited, well not by anyone > who couldn't DoS the box in any number of other ways, > including shutting it down. That code is run early during boot up when bringing online a cpu. If you can control this, you own the box. - 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/