From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9DD9C433E0 for ; Fri, 19 Feb 2021 22:08:27 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 725C564E28 for ; Fri, 19 Feb 2021 22:08:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 725C564E28 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:59098 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lDDwo-0005jc-G1 for qemu-devel@archiver.kernel.org; Fri, 19 Feb 2021 17:08:26 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43062) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lDDpc-0003lh-FL for qemu-devel@nongnu.org; Fri, 19 Feb 2021 17:01:00 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:23856) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lDDpa-0005hZ-CG for qemu-devel@nongnu.org; Fri, 19 Feb 2021 17:01:00 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1613772057; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kfXPLOFRyc3TekUGGzF9HARVFfnCWS05mTmnQHE6c+A=; b=FDPwhqEfCWHmwm/Kwu2kQqZpOzBr/Gqsc0y2lXegvTNEftyjDy9E4RtzqQ/troU/DaHKIM 4d3kACN8A+6UfoajvGm909wtnMfi0zQEmiagDn8Y9rPZ9ThqITee/GdmlEzSgxG8TlI36v 9T4pF+JuQguXGu6hckyhmkZcmedJoSE= 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-416-DEpm8Y_fMK2GKmkYixCvBg-1; Fri, 19 Feb 2021 17:00:53 -0500 X-MC-Unique: DEpm8Y_fMK2GKmkYixCvBg-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EE44D801965; Fri, 19 Feb 2021 22:00:51 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-114-184.ams2.redhat.com [10.36.114.184]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 6121060BFA; Fri, 19 Feb 2021 22:00:43 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 17B8C1800864; Fri, 19 Feb 2021 23:00:37 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Subject: [PULL 5/8] spice-app: avoid crash when core spice module doesn't loaded Date: Fri, 19 Feb 2021 23:00:33 +0100 Message-Id: <20210219220036.100654-6-kraxel@redhat.com> In-Reply-To: <20210219220036.100654-1-kraxel@redhat.com> References: <20210219220036.100654-1-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=63.128.21.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Gerd Hoffmann , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Bruce Rogers Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Bruce Rogers When qemu is built with modules, but a given module doesn't load qemu should handle that gracefully. When ui-spice-core.so isn't able to be loaded and qemu is invoked with -display spice-app or -spice, qemu will dereference a null pointer. With this change we check the pointer before dereferencing and error out in a normal way. Signed-off-by: Bruce Rogers Reviewed-by: Marc-André Lureau Reviewed-by: Philippe Mathieu-Daudé Message-Id: <20210213032318.346093-1-brogers@suse.com> Signed-off-by: Gerd Hoffmann --- ui/spice-app.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/ui/spice-app.c b/ui/spice-app.c index 026124ef56a0..4325ac2d9c54 100644 --- a/ui/spice-app.c +++ b/ui/spice-app.c @@ -129,6 +129,7 @@ static void spice_app_atexit(void) static void spice_app_display_early_init(DisplayOptions *opts) { QemuOpts *qopts; + QemuOptsList *list; GError *err = NULL; if (opts->has_full_screen) { @@ -159,11 +160,16 @@ static void spice_app_display_early_init(DisplayOptions *opts) exit(1); } } + list = qemu_find_opts("spice"); + if (list == NULL) { + error_report("spice-app missing spice support"); + exit(1); + } type_register(&char_vc_type_info); sock_path = g_strjoin("", app_dir, "/", "spice.sock", NULL); - qopts = qemu_opts_create(qemu_find_opts("spice"), NULL, 0, &error_abort); + qopts = qemu_opts_create(list, NULL, 0, &error_abort); qemu_opt_set(qopts, "disable-ticketing", "on", &error_abort); qemu_opt_set(qopts, "unix", "on", &error_abort); qemu_opt_set(qopts, "addr", sock_path, &error_abort); -- 2.29.2