From patchwork Mon Mar 29 15:01:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefano Garzarella X-Patchwork-Id: 12170311 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80437C433DB for ; Mon, 29 Mar 2021 15:07:25 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 16BCC6157F for ; Mon, 29 Mar 2021 15:07:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16BCC6157F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:36444 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lQtUC-00047f-6e for qemu-devel@archiver.kernel.org; Mon, 29 Mar 2021 11:07:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:48546) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQtP2-000867-Vl for qemu-devel@nongnu.org; Mon, 29 Mar 2021 11:02:07 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:50650) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lQtOs-0002Nl-GM for qemu-devel@nongnu.org; Mon, 29 Mar 2021 11:02:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1617030112; 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=/h/9FCHLPUALSSaLJ05cd+OsJaZfWoRB6csTz/uUqP0=; b=Lu9UJdmCyS67DuSXdD7GFswf9yBzCNsPPKJdIKhSGOoIpL98xD9wji9yc5bX1KHwQbTygc /DKFrb8yhv6tO8yFlGNwlpJqGLXyxcUKnFgBhcTSh5sGIdjzJmptWuRmo4W3/scWAAxJwP 62CsUTf9iq+1EB/tb7s6C+Ade6YOltI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-316-hCuQxWtHOyK57PyvFVfPlw-1; Mon, 29 Mar 2021 11:01:49 -0400 X-MC-Unique: hCuQxWtHOyK57PyvFVfPlw-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2216A50204; Mon, 29 Mar 2021 15:01:48 +0000 (UTC) Received: from steredhat.redhat.com (ovpn-115-72.ams2.redhat.com [10.36.115.72]) by smtp.corp.redhat.com (Postfix) with ESMTP id 530D95D9D3; Mon, 29 Mar 2021 15:01:40 +0000 (UTC) From: Stefano Garzarella To: qemu-devel@nongnu.org Subject: [PATCH 2/2] block/rbd: fix memory leak in qemu_rbd_co_create_opts() Date: Mon, 29 Mar 2021 17:01:29 +0200 Message-Id: <20210329150129.121182-3-sgarzare@redhat.com> In-Reply-To: <20210329150129.121182-1-sgarzare@redhat.com> References: <20210329150129.121182-1-sgarzare@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=sgarzare@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=170.10.133.124; envelope-from=sgarzare@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action 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: Kevin Wolf , qemu-block@nongnu.org, Peter Lieven , Max Reitz , Florian Florensa , Jason Dillaman Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" When we allocate 'q_namespace', we forgot to set 'has_q_namespace' to true. This can cause several issues, including a memory leak, since qapi_free_BlockdevCreateOptions() does not deallocate that memory, as reported by valgrind: 13 bytes in 1 blocks are definitely lost in loss record 7 of 96 at 0x4839809: malloc (vg_replace_malloc.c:307) by 0x48CEBB8: g_malloc (in /usr/lib64/libglib-2.0.so.0.6600.8) by 0x48E3FE3: g_strdup (in /usr/lib64/libglib-2.0.so.0.6600.8) by 0x180010: qemu_rbd_co_create_opts (rbd.c:446) by 0x1AE72C: bdrv_create_co_entry (block.c:492) by 0x241902: coroutine_trampoline (coroutine-ucontext.c:173) by 0x57530AF: ??? (in /usr/lib64/libc-2.32.so) by 0x1FFEFFFA6F: ??? Fix setting 'has_q_namespace' to true when we allocate 'q_namespace'. Fixes: 19ae9ae014 ("block/rbd: Add support for ceph namespaces") Signed-off-by: Stefano Garzarella Reviewed-by: Markus Armbruster --- block/rbd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/rbd.c b/block/rbd.c index 24cefcd0dc..f098a89c7b 100644 --- a/block/rbd.c +++ b/block/rbd.c @@ -444,6 +444,7 @@ static int coroutine_fn qemu_rbd_co_create_opts(BlockDriver *drv, loc->user = g_strdup(qdict_get_try_str(options, "user")); loc->has_user = !!loc->user; loc->q_namespace = g_strdup(qdict_get_try_str(options, "namespace")); + loc->has_q_namespace = !!loc->q_namespace; loc->image = g_strdup(qdict_get_try_str(options, "image")); keypairs = qdict_get_try_str(options, "=keyvalue-pairs");