From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: =?UTF-8?Q?Jo=C3=A3o_?= =?UTF-8?Q?T=C3=A1vora?= Newsgroups: gmane.emacs.bugs Subject: bug#45198: 28.0.50; Sandbox mode Date: Sun, 13 Dec 2020 20:13:16 +0000 Message-ID: <87mtyhzcpv.fsf@gmail.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="39457"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) Cc: Bastien , Philipp Stephani , 45198@debbugs.gnu.org To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sun Dec 13 21:14:10 2020 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1koXkw-000A9b-A6 for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 13 Dec 2020 21:14:10 +0100 Original-Received: from localhost ([::1]:37816 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1koXkv-0007LY-Af for geb-bug-gnu-emacs@m.gmane-mx.org; Sun, 13 Dec 2020 15:14:09 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:38614) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1koXkn-0007LQ-Ui for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2020 15:14:01 -0500 Original-Received: from debbugs.gnu.org ([209.51.188.43]:38885) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1koXkn-0002kl-NX for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2020 15:14:01 -0500 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1koXkn-0002ec-J0 for bug-gnu-emacs@gnu.org; Sun, 13 Dec 2020 15:14:01 -0500 X-Loop: help-debbugs@gnu.org Resent-From: =?UTF-8?Q?Jo=C3=A3o_?= =?UTF-8?Q?T=C3=A1vora?= Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 13 Dec 2020 20:14:01 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 45198 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: patch Original-Received: via spool by 45198-submit@debbugs.gnu.org id=B45198.160789040710038 (code B ref 45198); Sun, 13 Dec 2020 20:14:01 +0000 Original-Received: (at 45198) by debbugs.gnu.org; 13 Dec 2020 20:13:27 +0000 Original-Received: from localhost ([127.0.0.1]:50431 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1koXkF-0002bp-Cu for submit@debbugs.gnu.org; Sun, 13 Dec 2020 15:13:27 -0500 Original-Received: from mail-wm1-f47.google.com ([209.85.128.47]:52879) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1koXkD-0002bL-Vy for 45198@debbugs.gnu.org; Sun, 13 Dec 2020 15:13:26 -0500 Original-Received: by mail-wm1-f47.google.com with SMTP id a6so11942615wmc.2 for <45198@debbugs.gnu.org>; Sun, 13 Dec 2020 12:13:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:references:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding; bh=LlgXtqBosNWZ5pp6vxtg+Lx374NQLUhAsVtUsFfZ8kU=; b=P32Z1JMhWCSRkVDKSIN1y69TE85ewNMhWKIT6egGgWTRUk57LOX/+s0mZK2q91qtZM 96+V0M/E110RARy0H8dOFdDUF2oRzbT+MrqEy1PWpt2ehnsJ2GdgUi4opQogbJNuunpd uHCCXL1lB5w5XzPpiIF16GV8uLyO66WAGbT6Xz+x4lWL0oBHgVfoabVAy5hiY1eRKJXB Pprn5sAmEzCjEwfiC8Kx2e9FCk520S8FaATlnmgQTnr+ah8zRs3ZPhuoQSAJB+SZpA6g LaL44E6PIVh4PcHtaOj7ib3LRM6gL1PUCwck/Foog7WttkgE1O5g8fKnugAIm1g1nJlo 4E+g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:references:date:in-reply-to :message-id:user-agent:mime-version:content-transfer-encoding; bh=LlgXtqBosNWZ5pp6vxtg+Lx374NQLUhAsVtUsFfZ8kU=; b=bY4Z0kHCLjjO4ijVygtQP5KiZdHpB2VbyVpZ+Vmnnw9m7CpfcrvUxZ3JFmZu8Ebl5Y TkCoos+GWc5fH+HhPOfh37Bi0gFKzmgj6nR4uQnIJuu8SaF0BuW8m3yKsci+soc/B6Ln 3zc3pzsInOxH2LLC3WF0XEgRlT9ZcudUD3tc9j6QNQd+IzSGluTG/liJNg/uwMZwjc4m PRSQr+jmZzBpp5YBVHORd4cdlLti08LYeiVg2YuG7IxEQQRtlsV/TAiVzb7tcMvU8vSv R/nfcq9A8GpZpdAUyJoEWm5+9XrV5ILHqEz7Y76ZNI4ekPH3zJw0tnc9AVj4UeyI1mah p2vw== X-Gm-Message-State: AOAM532QXROWgNGPLXegqr+8wJCAYlpOUkHVJJLBGl0hV0WF2mBb1x/6 Se9vd86PNtt+8o4yCQDiSS4= X-Google-Smtp-Source: ABdhPJzwxw/8OH4lYs/5i2fdCegAGrCIhEQ2taZPnZaPmvEkPhtk7Hn1idNjVya0mzhD8Q7triF1eg== X-Received: by 2002:a1c:c2d4:: with SMTP id s203mr24397477wmf.58.1607890400186; Sun, 13 Dec 2020 12:13:20 -0800 (PST) Original-Received: from krug (a94-133-30-26.cpe.netcabo.pt. [94.133.30.26]) by smtp.gmail.com with ESMTPSA id g184sm28655499wma.16.2020.12.13.12.13.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 13 Dec 2020 12:13:18 -0800 (PST) In-Reply-To: (Stefan Monnier's message of "Sun, 13 Dec 2020 12:57:25 -0500") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:196007 Archived-At: Stefan Monnier writes: >> I don't think such an approach can work. It assumes perfect knowledge >> about anything that might be problematic, and also assumes that all >> future changes to Emacs take the sandbox question into account. >> Especially the latter point seems unrealistic, and this looks like a >> security incident waiting to happen. > > That's true for the implementation side. > How 'bout the ELisp API side? That's well pointed out. Why can't we just put the gate in the default expansion of the C DEFUN macro? There are only so many DEFUN's. Then the whitelisting could proceed from there. DEFUN's are rarely added, and they would be forbidden in sandbox mode by default. Jo=C3=A3o