Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932198AbWHBVag (ORCPT ); Wed, 2 Aug 2006 17:30:36 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932203AbWHBVag (ORCPT ); Wed, 2 Aug 2006 17:30:36 -0400 Received: from moutng.kundenserver.de ([212.227.126.186]:42970 "EHLO moutng.kundenserver.de") by vger.kernel.org with ESMTP id S932198AbWHBVaf (ORCPT ); Wed, 2 Aug 2006 17:30:35 -0400 From: Bodo Eggert <7eggert@elstempel.de> Subject: Re: [patch] x86: rename is_at_popf(), add iret to tests and fix insn length To: Andi Kleen , Chuck Ebbert <76306.1226@compuserve.com>, linux-kernel , Linus Torvalds Reply-To: 7eggert@gmx.de Date: Wed, 02 Aug 2006 23:29:30 +0200 References: <6FokL-6q5-7@gated-at.bofh.it> <6Fouu-6Ch-17@gated-at.bofh.it> User-Agent: KNode/0.7.2 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8Bit X-Troll: Tanz Message-Id: X-be10.7eggert.dyndns.org-MailScanner-Information: See www.mailscanner.info for information X-be10.7eggert.dyndns.org-MailScanner: Found to be clean X-be10.7eggert.dyndns.org-MailScanner-From: 7eggert@elstempel.de X-Provags-ID: kundenserver.de abuse@kundenserver.de login:9b3b2cc444a07783f194c895a09f1de9 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 799 Lines: 16 Andi Kleen wrote: > On Wednesday 02 August 2006 14:37, Chuck Ebbert wrote: >> is_at_popf() needs to test for the iret instruction as well as >> popf. So add that test and rename it to is_setting_trap_flag(). > > Do you have a single real example where anybody is actually using IRET > in user space? It might be used by malicious software, so unless it can't be abused, it must be checked. -- Ich danke GMX daf?r, die Verwendung meiner Adressen mittels per SPF verbreiteten L?gen zu sabotieren. http://david.woodhou.se/why-not-spf.html - 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/