From patchwork Fri Jan 10 09:17:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pan Nengyuan X-Patchwork-Id: 1220902 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=huawei.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47vHXb0WkHz9s1x for ; Fri, 10 Jan 2020 20:21:02 +1100 (AEDT) Received: from localhost ([::1]:42874 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ipqTU-0005EK-Bq for incoming@patchwork.ozlabs.org; Fri, 10 Jan 2020 04:21:00 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33452) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ipqR5-00029b-RD for qemu-devel@nongnu.org; Fri, 10 Jan 2020 04:18:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ipqR4-0004un-N7 for qemu-devel@nongnu.org; Fri, 10 Jan 2020 04:18:31 -0500 Received: from szxga04-in.huawei.com ([45.249.212.190]:2674 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1ipqR4-0004dV-BV; Fri, 10 Jan 2020 04:18:30 -0500 Received: from DGGEMS401-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id 2417338EB152DB909AF2; Fri, 10 Jan 2020 17:18:26 +0800 (CST) Received: from DESKTOP-9NTIQGG.china.huawei.com (10.173.221.136) by DGGEMS401-HUB.china.huawei.com (10.3.19.201) with Microsoft SMTP Server id 14.3.439.0; Fri, 10 Jan 2020 17:18:16 +0800 From: To: , Subject: [PATCH v2 1/2] vl: Don't mismatch g_strsplit()/g_free() Date: Fri, 10 Jan 2020 17:17:09 +0800 Message-ID: <20200110091710.53424-2-pannengyuan@huawei.com> X-Mailer: git-send-email 2.21.0.windows.1 In-Reply-To: <20200110091710.53424-1-pannengyuan@huawei.com> References: <20200110091710.53424-1-pannengyuan@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.173.221.136] X-CFilter-Loop: Reflected X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 45.249.212.190 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-trivial@nongnu.org, Euler Robot , Pan Nengyuan , qemu-devel@nongnu.org, zhang.zhanghailiang@huawei.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Pan Nengyuan It's a mismatch between g_strsplit and g_free, it will cause a memory leak as follow: [root@localhost]# ./aarch64-softmmu/qemu-system-aarch64 -accel help Accelerators supported in QEMU binary: tcg kvm ================================================================= ==1207900==ERROR: LeakSanitizer: detected memory leaks Direct leak of 8 byte(s) in 2 object(s) allocated from: #0 0xfffd700231cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb) #1 0xfffd6ec57163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163) #2 0xfffd6ec724d7 in g_strndup (/lib64/libglib-2.0.so.0+0x724d7) #3 0xfffd6ec73d3f in g_strsplit (/lib64/libglib-2.0.so.0+0x73d3f) #4 0xaaab66be5077 in main /mnt/sdc/qemu-master/qemu-4.2.0-rc0/vl.c:3517 #5 0xfffd6e140b9f in __libc_start_main (/lib64/libc.so.6+0x20b9f) #6 0xaaab66bf0f53 (./build/aarch64-softmmu/qemu-system-aarch64+0x8a0f53) Direct leak of 2 byte(s) in 2 object(s) allocated from: #0 0xfffd700231cb in __interceptor_malloc (/lib64/libasan.so.4+0xd31cb) #1 0xfffd6ec57163 in g_malloc (/lib64/libglib-2.0.so.0+0x57163) #2 0xfffd6ec7243b in g_strdup (/lib64/libglib-2.0.so.0+0x7243b) #3 0xfffd6ec73e6f in g_strsplit (/lib64/libglib-2.0.so.0+0x73e6f) #4 0xaaab66be5077 in main /mnt/sdc/qemu-master/qemu-4.2.0-rc0/vl.c:3517 #5 0xfffd6e140b9f in __libc_start_main (/lib64/libc.so.6+0x20b9f) #6 0xaaab66bf0f53 (./build/aarch64-softmmu/qemu-system-aarch64+0x8a0f53) Reported-by: Euler Robot Signed-off-by: Pan Nengyuan --- Changes v2 to v1: - fix another on in qga/main.c --- vl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/vl.c b/vl.c index 86474a55c9..2fa5cb3b9a 100644 --- a/vl.c +++ b/vl.c @@ -3476,7 +3476,7 @@ int main(int argc, char **argv, char **envp) gchar **optname = g_strsplit(typename, ACCEL_CLASS_SUFFIX, 0); printf("%s\n", optname[0]); - g_free(optname); + g_strfreev(optname); } g_free(typename); }