From nobody Mon Feb 9 12:43:38 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1502119165020568.2324280445844; Mon, 7 Aug 2017 08:19:25 -0700 (PDT) Received: from localhost ([::1]:37844 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dejoR-0003iZ-LN for importer@patchew.org; Mon, 07 Aug 2017 11:19:23 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49240) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dejJF-0007ZI-Mz for qemu-devel@nongnu.org; Mon, 07 Aug 2017 10:47:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dejJ0-00044D-T4 for qemu-devel@nongnu.org; Mon, 07 Aug 2017 10:47:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58346) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dejIZ-0003fH-5q; Mon, 07 Aug 2017 10:46:27 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id EFED17F40F; Mon, 7 Aug 2017 14:46:25 +0000 (UTC) Received: from blackfin.pond.sub.org (ovpn-116-254.ams2.redhat.com [10.36.116.254]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 90D88707B9; Mon, 7 Aug 2017 14:46:25 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id C28771133003; Mon, 7 Aug 2017 16:46:00 +0200 (CEST) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com EFED17F40F Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx01.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=armbru@redhat.com From: Markus Armbruster To: qemu-devel@nongnu.org Date: Mon, 7 Aug 2017 16:45:58 +0200 Message-Id: <1502117160-24655-55-git-send-email-armbru@redhat.com> In-Reply-To: <1502117160-24655-1-git-send-email-armbru@redhat.com> References: <1502117160-24655-1-git-send-email-armbru@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Mon, 07 Aug 2017 14:46:26 +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] [RFC PATCH 54/56] qemu-img: blk_getlength() can fail, fix img_map() to check 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: kwolf@redhat.com, famz@redhat.com, qemu-block@nongnu.org, quintela@redhat.com, jcody@redhat.com, dgilbert@redhat.com, mreitz@redhat.com, marcandre.lureau@redhat.com, pbonzini@redhat.com, jsnow@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: Markus Armbruster --- qemu-img.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/qemu-img.c b/qemu-img.c index 3ae5fe3..cf3ef3e 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -2838,6 +2838,10 @@ static int img_map(int argc, char **argv) } =20 length =3D blk_getlength(blk); + if (length < 0) { + error_report("Couldn't get length of image '%s': %s", + filename, strerror(-length)); + } while (curr.start + curr.length < length) { int64_t nsectors_left; int64_t sector_num; --=20 2.7.5