From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1B9CEC433DF for ; Sun, 26 Jul 2020 21:10:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB0B22065C for ; Sun, 26 Jul 2020 21:10:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726764AbgGZVKq (ORCPT ); Sun, 26 Jul 2020 17:10:46 -0400 Received: from mail-out.m-online.net ([212.18.0.9]:47669 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726753AbgGZVKq (ORCPT ); Sun, 26 Jul 2020 17:10:46 -0400 Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 4BFFw46qhBz1qrFs; Sun, 26 Jul 2020 23:10:44 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 4BFFw46Kxdz1qr5Q; Sun, 26 Jul 2020 23:10:44 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id 0uiGKPrQIJBR; Sun, 26 Jul 2020 23:10:44 +0200 (CEST) X-Auth-Info: 2ou07oLF0Hf2VcumHSP5w6voOl1A97PdKYlcodz0uzMU9yyS0PAj5CsnB9fjCNjc Received: from igel.home (ppp-46-244-174-182.dynamic.mnet-online.de [46.244.174.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sun, 26 Jul 2020 23:10:44 +0200 (CEST) Received: by igel.home (Postfix, from userid 1000) id 91CE62C1293; Sun, 26 Jul 2020 23:10:43 +0200 (CEST) From: Andreas Schwab To: Michael Schmitz Cc: John Paul Adrian Glaubitz , linux-m68k , Debian m68k , Helge Deller Subject: Re: Seccomp support for linux-m68k References: <5642df4a-be8f-01eb-63c1-b5b4d75fa9d0@physik.fu-berlin.de> <06f3ccd0-3567-5905-eea0-80fb18206648@gmail.com> <87sgde5yf7.fsf@igel.home> <419f407f-b758-9dfe-699e-be9229444cc1@gmail.com> X-Yow: Jesus is my POSTMASTER GENERAL.. Date: Sun, 26 Jul 2020 23:10:43 +0200 In-Reply-To: <419f407f-b758-9dfe-699e-be9229444cc1@gmail.com> (Michael Schmitz's message of "Mon, 27 Jul 2020 08:46:22 +1200") Message-ID: <87365e56ek.fsf@igel.home> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.0.91 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-m68k-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-m68k@vger.kernel.org On Jul 27 2020, Michael Schmitz wrote: > What I attempt to do is support syscall filtering. Returning -ENOSYS in > that case would run the risk of masking existing syscalls to user probe > code just because the user process happens to have insufficient privileges. What does ENOSYS have to do with privileges? Andreas. -- Andreas Schwab, schwab@linux-m68k.org GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1 "And now for something completely different."