Message ID | 1470690267-31454-35-git-send-email-mdroth@linux.vnet.ibm.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> 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 43049607D6 for <patchwork-qemu-devel@patchwork.kernel.org>; Mon, 8 Aug 2016 21:29:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 32B2B27E22 for <patchwork-qemu-devel@patchwork.kernel.org>; Mon, 8 Aug 2016 21:29:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 274E527FBE; Mon, 8 Aug 2016 21:29:57 +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 CC03B27E22 for <patchwork-qemu-devel@patchwork.kernel.org>; Mon, 8 Aug 2016 21:29:56 +0000 (UTC) Received: from localhost ([::1]:59896 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>) id 1bWs7P-0003DN-Td for patchwork-qemu-devel@patchwork.kernel.org; Mon, 08 Aug 2016 17:29:55 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41995) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from <mdroth@linux.vnet.ibm.com>) id 1bWrkH-00046Q-5F for qemu-devel@nongnu.org; Mon, 08 Aug 2016 17:06:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from <mdroth@linux.vnet.ibm.com>) id 1bWrkC-00060d-TS for qemu-devel@nongnu.org; Mon, 08 Aug 2016 17:06:00 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:9721) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from <mdroth@linux.vnet.ibm.com>) id 1bWrkC-0005zx-LI for qemu-devel@nongnu.org; Mon, 08 Aug 2016 17:05:56 -0400 Received: from pps.filterd (m0098404.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u78Kxk6i095350 for <qemu-devel@nongnu.org>; Mon, 8 Aug 2016 17:05:56 -0400 Received: from e37.co.us.ibm.com (e37.co.us.ibm.com [32.97.110.158]) by mx0a-001b2d01.pphosted.com with ESMTP id 24nbyr8tku-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for <qemu-devel@nongnu.org>; Mon, 08 Aug 2016 17:05:55 -0400 Received: from localhost by e37.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 8 Aug 2016 15:05:53 -0600 X-IBM-Helo: d03dlp03.boulder.ibm.com X-IBM-MailFrom: mdroth@linux.vnet.ibm.com Received: from b01cxnp22033.gho.pok.ibm.com (b01cxnp22033.gho.pok.ibm.com [9.57.198.23]) by d03dlp03.boulder.ibm.com (Postfix) with ESMTP id A1F4919D8052; Mon, 8 Aug 2016 15:05:26 -0600 (MDT) Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u78L5q9v11338132; Mon, 8 Aug 2016 21:05:52 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 7FA0630004; Mon, 8 Aug 2016 17:05:52 -0400 (EDT) Received: from localhost (unknown [9.80.86.168]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id 26BE430002; Mon, 8 Aug 2016 17:05:52 -0400 (EDT) From: Michael Roth <mdroth@linux.vnet.ibm.com> To: qemu-devel@nongnu.org Date: Mon, 8 Aug 2016 16:04:05 -0500 X-Mailer: git-send-email 1.9.1 In-Reply-To: <1470690267-31454-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1470690267-31454-1-git-send-email-mdroth@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16080821-0024-0000-0000-00001448BCE8 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00005568; HX=3.00000240; KW=3.00000007; PH=3.00000004; SC=3.00000178; SDB=6.00741898; UDB=6.00349152; IPR=6.00514456; BA=6.00004651; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00012252; XFM=3.00000011; UTC=2016-08-08 21:05:54 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 16080821-0025-0000-0000-00004361D94B Message-Id: <1470690267-31454-35-git-send-email-mdroth@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2016-08-08_15:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1604210000 definitions=main-1608080226 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 Subject: [Qemu-devel] [PATCH 34/56] qcow2: Avoid making the L1 table too big X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: <qemu-devel.nongnu.org> List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe> List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/> List-Post: <mailto:qemu-devel@nongnu.org> List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help> List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>, <mailto:qemu-devel-request@nongnu.org?subject=subscribe> Cc: qemu-stable@nongnu.org, Max Reitz <mreitz@redhat.com> Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org> X-Virus-Scanned: ClamAV using ClamSMTP |
diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index 31ecc10..22bdb47 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -64,7 +64,8 @@ int qcow2_grow_l1_table(BlockDriverState *bs, uint64_t min_size, } } - if (new_l1_size > INT_MAX / sizeof(uint64_t)) { + QEMU_BUILD_BUG_ON(QCOW_MAX_L1_SIZE > INT_MAX); + if (new_l1_size > QCOW_MAX_L1_SIZE / sizeof(uint64_t)) { return -EFBIG; }