From patchwork Wed Aug 6 06:15:55 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Zhanghailiang X-Patchwork-Id: 376903 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org 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 B89781400AA for ; Wed, 6 Aug 2014 16:17:23 +1000 (EST) Received: from localhost ([::1]:36725 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEuXJ-0005pd-O6 for incoming@patchwork.ozlabs.org; Wed, 06 Aug 2014 02:17:21 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40340) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEuWn-000552-A4 for qemu-devel@nongnu.org; Wed, 06 Aug 2014 02:16:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XEuWi-0006Jq-53 for qemu-devel@nongnu.org; Wed, 06 Aug 2014 02:16:49 -0400 Received: from szxga03-in.huawei.com ([119.145.14.66]:61375) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XEuWh-0006Ir-AW for qemu-devel@nongnu.org; Wed, 06 Aug 2014 02:16:44 -0400 Received: from 172.24.2.119 (EHLO szxeml452-hub.china.huawei.com) ([172.24.2.119]) by szxrg03-dlp.huawei.com (MOS 4.4.3-GA FastPath queued) with ESMTP id ASN81017; Wed, 06 Aug 2014 14:16:13 +0800 (CST) Received: from localhost (10.177.22.69) by szxeml452-hub.china.huawei.com (10.82.67.195) with Microsoft SMTP Server id 14.3.158.1; Wed, 6 Aug 2014 14:16:05 +0800 From: zhanghailiang To: Date: Wed, 6 Aug 2014 14:15:55 +0800 Message-ID: <1407305758-13108-2-git-send-email-zhang.zhanghailiang@huawei.com> X-Mailer: git-send-email 1.9.2.msysgit.0 In-Reply-To: <1407305758-13108-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1407305758-13108-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.177.22.69] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020202.53E1C82D.00B3,ss=1,re=0.000,fgs=0, ip=0.0.0.0, so=2013-05-26 15:14:31, dmn=2011-05-27 18:58:46 X-Mirapoint-Loop-Id: 3a3d4d841cc1dc6cac000da74f7de710 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 119.145.14.66 Cc: kwolf@redhat.com, stefanha@redhat.com, mst@redhat.com, luonengjun@huawei.com, peter.huangpeng@huawei.com, lcapitulino@redhat.com, alex@alex.org.uk, pbonzini@redhat.com, alex.bennee@linaro.org, zhanghailiang Subject: [Qemu-devel] [PATCH v2 1/4] l2cap: fix access freed memory X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Pointer 'ch' will be used in function 'l2cap_channel_open_req_msg' after it was previously freed in 'l2cap_channel_open'. Assigned it to NULL after it is freed. Reviewed-by: Alex Bennée Signed-off-by: zhanghailiang --- hw/bt/l2cap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/bt/l2cap.c b/hw/bt/l2cap.c index 2301d6f..591e047 100644 --- a/hw/bt/l2cap.c +++ b/hw/bt/l2cap.c @@ -429,7 +429,7 @@ static struct l2cap_chan_s *l2cap_channel_open(struct l2cap_instance_s *l2cap, status = L2CAP_CS_NO_INFO; } else { g_free(ch); - + ch = NULL; result = L2CAP_CR_NO_MEM; status = L2CAP_CS_NO_INFO; }