From nobody Tue Apr 15 15:27:59 2025 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.zoho.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 1488219647050601.5503744557492; Mon, 27 Feb 2017 10:20:47 -0800 (PST) Received: from localhost ([::1]:55574 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ciPuf-0006yP-Ey for importer@patchew.org; Mon, 27 Feb 2017 13:20:45 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52141) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ciPfi-0002PM-MP for qemu-devel@nongnu.org; Mon, 27 Feb 2017 13:05:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ciPfg-0001wK-Kz for qemu-devel@nongnu.org; Mon, 27 Feb 2017 13:05:18 -0500 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:48679) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ciPfg-0001rj-Av for qemu-devel@nongnu.org; Mon, 27 Feb 2017 13:05:16 -0500 Received: from pm215 by orth.archaic.org.uk with local (Exim 4.84_2) (envelope-from ) id 1ciPfT-0002Kk-Rr for qemu-devel@nongnu.org; Mon, 27 Feb 2017 18:05:03 +0000 From: Peter Maydell To: qemu-devel@nongnu.org Date: Mon, 27 Feb 2017 18:04:36 +0000 Message-Id: <1488218699-31035-8-git-send-email-peter.maydell@linaro.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1488218699-31035-1-git-send-email-peter.maydell@linaro.org> References: <1488218699-31035-1-git-send-email-peter.maydell@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2001:8b0:1d0::2 Subject: [Qemu-devel] [PULL 07/30] hw/arm/virt: fix cpu object reference leak 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: , 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" From: Igor Mammedov object_new(FOO) returns an object with ref_cnt =3D=3D 1 and following object_property_set_bool(cpuobj, true, "realized", NULL) set parent of cpuobj to '/machine/unattached' which makes ref_cnt =3D=3D 2. Since machvirt_init() doesn't take ownership of cpuobj returned by object_new() it should explicitly drop reference to cpuobj when dangling pointer is about to go out of scope like it's done pc_new_cpu() to avoid object leak. Signed-off-by: Igor Mammedov Message-id: 1487253461-269218-1-git-send-email-imammedo@redhat.com Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- hw/arm/virt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index f3440f2..0c270b8 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -1378,6 +1378,7 @@ static void machvirt_init(MachineState *machine) } =20 object_property_set_bool(cpuobj, true, "realized", NULL); + object_unref(cpuobj); } fdt_add_timer_nodes(vms); fdt_add_cpu_nodes(vms); --=20 2.7.4