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 [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 1F1233858437 for ; Tue, 11 Oct 2022 07:54:43 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 1F1233858437 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=redhat.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1665474882; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=hdMZBqxpf5K45ZnEULucD13sG+cfVqooMJr/uiSSrmU=; b=XFjf/bfBXO4RF1vy4Bun/dwqgF2+BWl3wGiOlbwcmkp/WfgrtF7O+fCHgoxkRB6Bj4/CLd aYsp0zWlqn4M0YQbSrn8eMlKjcQ53YVfWxizxGjBT+3eIiZPjaLOEYkdIVvjLU8AHxzmR0 04LBG/Z2wMjtv1C4cij2OdbWrsAlhpk= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-518-6F9l4fxEP3-TmjvDQFS9Hw-1; Tue, 11 Oct 2022 03:54:41 -0400 X-MC-Unique: 6F9l4fxEP3-TmjvDQFS9Hw-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6129E862FDC for ; Tue, 11 Oct 2022 07:54:41 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.2.16.46]) by smtp.corp.redhat.com (Postfix) with ESMTPS id EA4D7FD48 for ; Tue, 11 Oct 2022 07:54:40 +0000 (UTC) From: Florian Weimer To: Florian Weimer via Libc-alpha Subject: Re: [PATCH] elf: Do not completely clear reused namespace in dlmopen (bug 29600) References: <87pmfn1ftc.fsf@oldenburg.str.redhat.com> Date: Tue, 11 Oct 2022 09:54:39 +0200 In-Reply-To: <87pmfn1ftc.fsf@oldenburg.str.redhat.com> (Florian Weimer via Libc-alpha's message of "Thu, 22 Sep 2022 19:26:07 +0200") Message-ID: <87czayhk1s.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.5 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_NONE,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: * Florian Weimer via Libc-alpha: > The data in the _ns_debug member must be preserved, otherwise > _dl_debug_initialize enters an infinite loop. To be conservative, > only clear the libc_map member for now, to fix bug 29528. > > Fixes commit d0e357ff45a75553dee3b17ed7d303bfa544f6fe > ("elf: Call __libc_early_init for reused namespaces (bug 29528)"), > by reverting most of it. > > Tested on i686-linux-gnu and x86_64-linux-gnu. Ping. This patch needs review: Thanks, Florian