From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Andrea Corallo Newsgroups: gmane.emacs.devel Subject: Re: Finalizing 'inhibit-automatic-native-compilation' Date: Tue, 14 Feb 2023 11:32:16 +0000 Message-ID: References: <837cx8cey0.fsf@gnu.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="2171"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) Cc: Eli Zaretskii , emacs-devel@gnu.org, Lars Ingebrigtsen , Rob Browning To: Stefan Monnier Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Tue Feb 14 12:33:09 2023 Return-path: Envelope-to: ged-emacs-devel@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 1pRtYb-0000MH-4t for ged-emacs-devel@m.gmane-mx.org; Tue, 14 Feb 2023 12:33:09 +0100 Original-Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pRtXs-0006rT-2W; Tue, 14 Feb 2023 06:32:24 -0500 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRtXq-0006rE-M6 for emacs-devel@gnu.org; Tue, 14 Feb 2023 06:32:22 -0500 Original-Received: from ma.sdf.org ([205.166.94.33]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pRtXp-0006UB-B3; Tue, 14 Feb 2023 06:32:22 -0500 Original-Received: from akrl by ma.sdf.org with local (Exim 4.92) (envelope-from ) id 1pRtXk-0005lL-2j; Tue, 14 Feb 2023 11:32:16 +0000 In-Reply-To: (Stefan Monnier's message of "Mon, 13 Feb 2023 18:04:42 -0500") Received-SPF: pass client-ip=205.166.94.33; envelope-from=akrl@sdf.org; helo=ma.sdf.org X-Spam_score_int: 18 X-Spam_score: 1.8 X-Spam_bar: + X-Spam_report: (1.8 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_SBL_CSS=3.335, RCVD_IN_XBL=0.375, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:303268 Archived-At: Stefan Monnier writes: >> Mmmh, we already use the `make-temp-file' machinery anyway for every >> compilation, but to understand if this is sufficient or doesn't help at >> all, I should understand more on why using `temporary-file-directory' is >> dangerous and in which context. > > `temporary-file-directory' may point to a world-writable directory, so > it's vulnerable to the usual race condition where someone manages to > predict the name of the file you're going to write and places there > a symlink to some "interesting" place, so you end up overwriting some > other file unwittingly. Okay, ce4a066ed1e generates trampolines in a temporary directory if no other option is viable (using the make-temp-file machinery to generate the unpredictable name). Andrea