From patchwork Wed Jan 4 11:21:20 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Gerd Hoffmann X-Patchwork-Id: 9496489 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CF09F606B5 for ; Wed, 4 Jan 2017 11:22:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C964B27E33 for ; Wed, 4 Jan 2017 11:22:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BD2DC27E63; Wed, 4 Jan 2017 11:22:08 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6E5A627E33 for ; Wed, 4 Jan 2017 11:22:08 +0000 (UTC) Received: from localhost ([::1]:38536 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cOjdv-0001nV-BA for patchwork-qemu-devel@patchwork.kernel.org; Wed, 04 Jan 2017 06:22:07 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52403) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cOjdK-0001ig-HX for qemu-devel@nongnu.org; Wed, 04 Jan 2017 06:21:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cOjdJ-0001ti-Kk for qemu-devel@nongnu.org; Wed, 04 Jan 2017 06:21:30 -0500 Received: from mx1.redhat.com ([209.132.183.28]:39814) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cOjdJ-0001t5-CE for qemu-devel@nongnu.org; Wed, 04 Jan 2017 06:21:29 -0500 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 90FFE61BAE for ; Wed, 4 Jan 2017 11:21:29 +0000 (UTC) Received: from nilsson.home.kraxel.org (ovpn-117-22.ams2.redhat.com [10.36.117.22]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id v04BLSfH008053; Wed, 4 Jan 2017 06:21:29 -0500 Received: by nilsson.home.kraxel.org (Postfix, from userid 500) id 5507080E2F; Wed, 4 Jan 2017 12:21:26 +0100 (CET) From: Gerd Hoffmann To: qemu-devel@nongnu.org Date: Wed, 4 Jan 2017 12:21:20 +0100 Message-Id: <1483528883-1753-9-git-send-email-kraxel@redhat.com> In-Reply-To: <1483528883-1753-1-git-send-email-kraxel@redhat.com> References: <1483528883-1753-1-git-send-email-kraxel@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Wed, 04 Jan 2017 11:21:29 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 08/11] gtk: avoid oob array access X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Gerd Hoffmann Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Marc-André Lureau When too many consoles are created, vcs[] may be write out-of-bounds. Signed-off-by: Marc-André Lureau Message-id: 20161207105511.25173-1-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann --- ui/gtk.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/ui/gtk.c b/ui/gtk.c index 356f400..86368e3 100644 --- a/ui/gtk.c +++ b/ui/gtk.c @@ -1706,6 +1706,11 @@ static CharDriverState *gd_vc_handler(ChardevVC *vc, Error **errp) ChardevCommon *common = qapi_ChardevVC_base(vc); CharDriverState *chr; + if (nb_vcs == MAX_VCS) { + error_setg(errp, "Maximum number of consoles reached"); + return NULL; + } + chr = qemu_chr_alloc(common, errp); if (!chr) { return NULL;