From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by sourceware.org (Postfix) with ESMTP id F39B9393C86C for ; Mon, 3 May 2021 21:06:28 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org F39B9393C86C Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-585-czEXPfP9O-iVPljSJM3PfA-1; Mon, 03 May 2021 17:06:25 -0400 X-MC-Unique: czEXPfP9O-iVPljSJM3PfA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id C0FAF803F46; Mon, 3 May 2021 21:06:24 +0000 (UTC) Received: from localhost (unknown [10.33.36.164]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5C11E19C97; Mon, 3 May 2021 21:06:24 +0000 (UTC) Date: Mon, 3 May 2021 22:06:23 +0100 From: Jonathan Wakely To: =?iso-8859-1?Q?Fran=E7ois?= Dumont Cc: "libstdc++@gcc.gnu.org" , gcc-patches Subject: Re: [PATCH][_GLIBCXX_DEBUG] libbacktrace integration Message-ID: <20210503210623.GG3008@redhat.com> References: MIME-Version: 1.0 In-Reply-To: X-Clacks-Overhead: GNU Terry Pratchett X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libstdc++@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libstdc++ mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 03 May 2021 21:06:31 -0000 On 03/05/21 22:17 +0200, François Dumont via Libstdc++ wrote: >Is it too early to consider this patch ? Or just lack of time ? I haven't had time to review it yet, but my general feeling hasn't changed. I still don't like the idea of executing additional code after undefined behaviour is detected. I've been convinced by glibc folk that every bit of code run when the program state is corrupt increases the risk that it can be exploited by an attacker.