From nobody Thu Nov 13 06:11:38 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1578229193; cv=none; d=zohomail.com; s=zohoarc; b=Nd09NoDpMCLL2BO80u1qNaYSq2HXqVZBEV5arU4QULQqnp4M9M0eTW68a4HDRzpb7MhXUAytR0cxzzzXsUsu9JVx+d0WeBgo3qXBQtVd1Sfk0DgjUkdTZDIfixayzK9TGZzzx/fIptWHpch35UDQNjQNGpwrqiZ2P93mua/db10= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1578229193; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=Nm5rBDcoCplmlWRAfpJUTX03Lt2BWA14BTGdBKMUPBs=; b=dWV6dzvLCgWjJVbDEDdPPhIfFFufBsbbz2gR+E/UxFY204VrtsvPSp+RQ7/Y77lg7ovkaKQniqyR3m30czyCzA64bV8hqe6lbiejoMJnLRZ1QS2U+oor84/VP7AplHjHjMOisUHVwgWknJV5J7NlM73s19ngMgxrgk1ank7YP4A= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1578229193666216.19573710659233; Sun, 5 Jan 2020 04:59:53 -0800 (PST) Received: from localhost ([::1]:41796 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1io5VY-0002k2-3Q for importer@patchew.org; Sun, 05 Jan 2020 07:59:52 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:58102) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1io5TY-0000k1-TP for qemu-devel@nongnu.org; Sun, 05 Jan 2020 07:57:49 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1io5TX-0003jq-Nd for qemu-devel@nongnu.org; Sun, 05 Jan 2020 07:57:48 -0500 Received: from us-smtp-delivery-1.mimecast.com ([205.139.110.120]:56870 helo=us-smtp-1.mimecast.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1io5TX-0003iq-Jm for qemu-devel@nongnu.org; Sun, 05 Jan 2020 07:57:47 -0500 Received: from mail-qt1-f199.google.com (mail-qt1-f199.google.com [209.85.160.199]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-392-_6WUKmuqMIS0LXNnp6OeOg-1; Sun, 05 Jan 2020 07:57:41 -0500 Received: by mail-qt1-f199.google.com with SMTP id k27so9559116qtu.12 for ; Sun, 05 Jan 2020 04:57:41 -0800 (PST) Received: from redhat.com (bzq-79-183-34-164.red.bezeqint.net. [79.183.34.164]) by smtp.gmail.com with ESMTPSA id c13sm19270948qko.87.2020.01.05.04.57.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Jan 2020 04:57:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1578229063; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Nm5rBDcoCplmlWRAfpJUTX03Lt2BWA14BTGdBKMUPBs=; b=YNEuj8zRVrHi5NdDRArqV9Y2xTxtws2Youp94E9VWOoFBOMqT09DE/stYoyC3ZQ77AyKjM xAmoAI6RZMr4iXquwDyVDKnangw9G2U2JWHXYH1Brsz7hCx0MbOu6j63SMNQj6ZQaLKjJn mGgAVeqFK6rZrifSs6KyQ/zKifkH4TE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:content-transfer-encoding :in-reply-to; bh=SV/3gkt55AkXiObd4ttRVZfM0Ouiap0tkA8DR2mthfg=; b=X/LCDTBKPBQereGcSHG5eEDOusQ/93rAuzu8nFxDlyljtNaO+U9hMbCPDcicpKCrcR 6D8ndi0vnB4zJGSxD3KfvIOh5cxF3IS/WPIMxmR6y4G5vhda2maOOZi5tUQJbcYdQtUf yaDA6RK63EnxEvZ3E3/A4vmZ+kfNKSrOTFLHxo80E7WxX8epttYa1PTcLQp1Fk+sfUnk ns+WriHbalth0RYVmOxreUxxOfDFs5XYe8uODFXMW5cxn3JR/wsTlEnVA+ZtPuNxKYXb sEWJcHYKLqYtS6k9qdYDITfW8wemFwSf+j6itzDNgiqfqc13/8mUU0BFcSs1m/zG379Z aaVg== X-Gm-Message-State: APjAAAUh4IpnGg83VGA4A9PREBnVsLT4bGKTuLZQq97HxbLiE5PjE6tq gDCl1RSQE/rSa4NVrxHPzrE2r68+1yqgn3k/BrKFGqJWyKGSjYapNm8DRtbj+FE64tWq0dUiUm5 2keTwf+X4TaZMQIo= X-Received: by 2002:a05:6214:1149:: with SMTP id b9mr73798127qvt.227.1578229060512; Sun, 05 Jan 2020 04:57:40 -0800 (PST) X-Google-Smtp-Source: APXvYqzya5OPB3zk+w7cR+JmWpck3qkY5h5Xhn4etT6tQvVBuFe68IP0YNFelcXEC9SpJQmk6+DfTg== X-Received: by 2002:a05:6214:1149:: with SMTP id b9mr73798114qvt.227.1578229060297; Sun, 05 Jan 2020 04:57:40 -0800 (PST) Date: Sun, 5 Jan 2020 07:57:35 -0500 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Subject: [PULL v3 04/32] virtio-serial-bus: fix memory leak while attach virtio-serial-bus Message-ID: <20200105125622.27231-5-mst@redhat.com> References: <20200105125622.27231-1-mst@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200105125622.27231-1-mst@redhat.com> X-Mailer: git-send-email 2.24.1.751.gd10ce2899c X-Mutt-Fcc: =sent X-MC-Unique: _6WUKmuqMIS0LXNnp6OeOg-1 X-Mimecast-Spam-Score: 0 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 205.139.110.120 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: Laurent Vivier , Peter Maydell , Amit Shah , Pan Nengyuan , Paolo Bonzini , Euler Robot , =?utf-8?Q?Marc-Andr=C3=A9?= Lureau Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Pan Nengyuan ivqs/ovqs/c_ivq/c_ovq is forgot to cleanup in virtio_serial_device_unrealize, the memory leak stack is as bellow: Direct leak of 1290240 byte(s) in 180 object(s) allocated from: #0 0x7fc9bfc27560 in calloc (/usr/lib64/libasan.so.3+0xc7560) #1 0x7fc9bed6f015 in g_malloc0 (/usr/lib64/libglib-2.0.so.0+0x50015) #2 0x5650e02b83e7 in virtio_add_queue hw/virtio/virtio.c:2327 #3 0x5650e02847b5 in virtio_serial_device_realize hw/char/virtio-serial= -bus.c:1089 #4 0x5650e02b56a7 in virtio_device_realize hw/virtio/virtio.c:3504 #5 0x5650e03bf031 in device_set_realized hw/core/qdev.c:876 #6 0x5650e0531efd in property_set_bool qom/object.c:2080 #7 0x5650e053650e in object_property_set_qobject qom/qom-qobject.c:26 #8 0x5650e0533e14 in object_property_set_bool qom/object.c:1338 #9 0x5650e04c0e37 in virtio_pci_realize hw/virtio/virtio-pci.c:1801 Reported-by: Euler Robot Signed-off-by: Pan Nengyuan Cc: Laurent Vivier Cc: Amit Shah Cc: "Marc-Andr=C3=A9 Lureau" Cc: Paolo Bonzini Message-Id: <1575444716-17632-3-git-send-email-pannengyuan@huawei.com> Signed-off-by: Michael S. Tsirkin Reviewed-by: Michael S. Tsirkin --- hw/char/virtio-serial-bus.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c index 33259042a9..e1cbce3ba3 100644 --- a/hw/char/virtio-serial-bus.c +++ b/hw/char/virtio-serial-bus.c @@ -1126,9 +1126,17 @@ static void virtio_serial_device_unrealize(DeviceSta= te *dev, Error **errp) { VirtIODevice *vdev =3D VIRTIO_DEVICE(dev); VirtIOSerial *vser =3D VIRTIO_SERIAL(dev); + int i; =20 QLIST_REMOVE(vser, next); =20 + virtio_delete_queue(vser->c_ivq); + virtio_delete_queue(vser->c_ovq); + for (i =3D 0; i < vser->bus.max_nr_ports; i++) { + virtio_delete_queue(vser->ivqs[i]); + virtio_delete_queue(vser->ovqs[i]); + } + g_free(vser->ivqs); g_free(vser->ovqs); g_free(vser->ports_map); --=20 MST