Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 19 Apr 2002 20:10:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 19 Apr 2002 20:10:00 -0400 Received: from neon-gw-l3.transmeta.com ([63.209.4.196]:25860 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id ; Fri, 19 Apr 2002 20:09:59 -0400 Date: Fri, 19 Apr 2002 17:09:49 -0700 (PDT) From: Linus Torvalds To: "H. Peter Anvin" cc: bgerst@didntduck.org, , , , Subject: Re: [PATCH] Re: SSE related security hole In-Reply-To: <1577.131.107.184.92.1019260888.squirrel@www.zytor.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 19 Apr 2002, H. Peter Anvin wrote: > > Indeed. Logically, FNINIT should have been extended to initialize it all - > - it is a security hole that it doesn't initialize MMX properly. Well, MMX should arguably be initialized with "emms", so the proper sequence migth be something like if (sse) asm("emms"); asm("fninit"); What does emms do to SSE2? Linus - 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/