From patchwork Fri Jan 5 14:44:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Murilo Opsfelder Araujo X-Patchwork-Id: 856077 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zCnXg0xhsz9sNr for ; Sat, 6 Jan 2018 01:45:53 +1100 (AEDT) Received: from localhost ([::1]:43562 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eXTFk-00011t-Rb for incoming@patchwork.ozlabs.org; Fri, 05 Jan 2018 09:45:48 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42976) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eXTFM-00011W-8l for qemu-devel@nongnu.org; Fri, 05 Jan 2018 09:45:25 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eXTFI-0008Qk-1U for qemu-devel@nongnu.org; Fri, 05 Jan 2018 09:45:24 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:35684 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eXTFH-0008Q8-SK for qemu-devel@nongnu.org; Fri, 05 Jan 2018 09:45:19 -0500 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id w05EiEsv113733 for ; Fri, 5 Jan 2018 09:45:18 -0500 Received: from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202]) by mx0b-001b2d01.pphosted.com with ESMTP id 2fab0r13mc-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Fri, 05 Jan 2018 09:45:18 -0500 Received: from localhost by e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Fri, 5 Jan 2018 09:45:15 -0500 Received: from b01ledav006.gho.pok.ibm.com (b01ledav006.gho.pok.ibm.com [9.57.199.111]) by b01cxnp22033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id w05EjFsj40501254; Fri, 5 Jan 2018 14:45:15 GMT Received: from b01ledav006.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 720FFAC040; Fri, 5 Jan 2018 09:46:25 -0500 (EST) Received: from kermit-br-ibm-com.ibmmodules.com (unknown [9.80.206.62]) by b01ledav006.gho.pok.ibm.com (Postfix) with ESMTP id 77682AC041; Fri, 5 Jan 2018 09:46:23 -0500 (EST) From: Murilo Opsfelder Araujo To: qemu-devel@nongnu.org Date: Fri, 5 Jan 2018 12:44:40 -0200 X-Mailer: git-send-email 2.14.3 MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 18010514-0048-0000-0000-0000021EFA6E X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00008325; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000244; SDB=6.00970632; UDB=6.00491609; IPR=6.00750601; BA=6.00005765; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00018889; XFM=3.00000015; UTC=2018-01-05 14:45:17 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 18010514-0049-0000-0000-000043A9DCF9 Message-Id: <20180105144440.18129-1-muriloo@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2018-01-05_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 impostorscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1709140000 definitions=main-1801050208 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH] block/ssh: fix possible segmentation fault when .desc is not null-terminated 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: Kevin Wolf , qemu-block@nongnu.org, Jeff Cody , Richard W M Jones , Max Reitz , Murilo Opsfelder Araujo Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch prevents a possible segmentation fault when .desc members are checked against NULL. The ssh_runtime_opts was added by commit 8a6a80896d6af03b8ee0c17cdf37219eca2588a7 ("block/ssh: Use QemuOpts for runtime options"). This fix was inspired by http://lists.nongnu.org/archive/html/qemu-devel/2018-01/msg00883.html. Fixes: 8a6a80896d6af03b8ee0c17cdf37219eca2588a7 ("block/ssh: Use QemuOpts for runtime options") Cc: Max Reitz Cc: Eric Blake Signed-off-by: Murilo Opsfelder Araujo Reviewed-by: Eric Blake --- block/ssh.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/ssh.c b/block/ssh.c index b049a16eb9..8890a0c4ba 100644 --- a/block/ssh.c +++ b/block/ssh.c @@ -556,6 +556,7 @@ static QemuOptsList ssh_runtime_opts = { .type = QEMU_OPT_STRING, .help = "Defines how and what to check the host key against", }, + { /* end of list */ } }, };