From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Eli Zaretskii Newsgroups: gmane.emacs.bugs Subject: bug#45198: 28.0.50; Sandbox mode Date: Sat, 17 Apr 2021 22:14:09 +0300 Message-ID: <83im4kvi4e.fsf@gnu.org> References: <5818DFAA-3A9C-4335-BAAF-1227A02C290A@acm.org> <83o8ecvnok.fsf@gnu.org> <83lf9gvktv.fsf@gnu.org> Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="3813"; mail-complaints-to="usenet@ciao.gmane.io" Cc: alan@idiocy.org, mattiase@acm.org, 45198@debbugs.gnu.org, stefan@marxist.se, p.stephani2@gmail.com, joaotavora@gmail.com To: Stefan Monnier Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Sat Apr 17 21:15:47 2021 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 1lXqPz-0000rM-Dh for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 17 Apr 2021 21:15:47 +0200 Original-Received: from localhost ([::1]:41254 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lXqPy-0004yK-DD for geb-bug-gnu-emacs@m.gmane-mx.org; Sat, 17 Apr 2021 15:15:46 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:35278) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lXqPG-0004vP-Rm for bug-gnu-emacs@gnu.org; Sat, 17 Apr 2021 15:15:06 -0400 Original-Received: from debbugs.gnu.org ([209.51.188.43]:33074) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lXqPG-0007vO-Jd for bug-gnu-emacs@gnu.org; Sat, 17 Apr 2021 15:15:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1lXqPG-0000Qh-G2 for bug-gnu-emacs@gnu.org; Sat, 17 Apr 2021 15:15:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Eli Zaretskii Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sat, 17 Apr 2021 19:15:02 +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=B45198.16186868771597 (code B ref 45198); Sat, 17 Apr 2021 19:15:02 +0000 Original-Received: (at 45198) by debbugs.gnu.org; 17 Apr 2021 19:14:37 +0000 Original-Received: from localhost ([127.0.0.1]:44619 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lXqOn-0000Pd-9I for submit@debbugs.gnu.org; Sat, 17 Apr 2021 15:14:37 -0400 Original-Received: from eggs.gnu.org ([209.51.188.92]:50786) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1lXqOl-0000PQ-9w for 45198@debbugs.gnu.org; Sat, 17 Apr 2021 15:14:31 -0400 Original-Received: from fencepost.gnu.org ([2001:470:142:3::e]:38717) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lXqOf-0007eA-0M; Sat, 17 Apr 2021 15:14:25 -0400 Original-Received: from 84.94.185.95.cable.012.net.il ([84.94.185.95]:2235 helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:RSA_AES_256_CBC_SHA1:256) (Exim 4.82) (envelope-from ) id 1lXqOe-0002YY-CL; Sat, 17 Apr 2021 15:14:24 -0400 In-Reply-To: (message from Stefan Monnier on Sat, 17 Apr 2021 14:47:34 -0400) 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:204249 Archived-At: > From: Stefan Monnier > Cc: mattiase@acm.org, joaotavora@gmail.com, p.stephani2@gmail.com, > stefan@marxist.se, 45198@debbugs.gnu.org, alan@idiocy.org > Date: Sat, 17 Apr 2021 14:47:34 -0400 > > >> Normally, this untrusted ELisp code (the one present within > >> `eval-when-compile` and macros defined within the file) limits itself to > >> quite simple sexp manipulation, so the sandboxing can be quite > >> restrictive, disallowing things like user interaction, uses of > >> subprocesses, or writing to files. > > How is this different from byte-compiling some code, e.g. one > > downloaded from some elpa? > > The normal way to enable flymake is something like > > (add-hook 'emacs-lisp-mode #'flymake-mode) > > so the file gets compiled just because you're looking at it. > That's quite different from an explicit request from the user to compile > a file. It is? Sorry, I don't see the difference, not a significant one. If you are implying that one does something conscious and deliberate before byte-compiling a file, then one could also remove Flymake from the hook while at that.