From mboxrd@z Thu Jan 1 00:00:00 1970 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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT 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 3AB21C43219 for ; Tue, 30 Apr 2019 16:11:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 09C872173E for ; Tue, 30 Apr 2019 16:11:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726570AbfD3QLa (ORCPT ); Tue, 30 Apr 2019 12:11:30 -0400 Received: from mga03.intel.com ([134.134.136.65]:10625 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725942AbfD3QL3 (ORCPT ); Tue, 30 Apr 2019 12:11:29 -0400 X-Amp-Result: UNSCANNABLE X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Apr 2019 09:11:29 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,414,1549958400"; d="scan'208";a="138757946" Received: from smile.fi.intel.com (HELO smile) ([10.237.72.86]) by orsmga008.jf.intel.com with ESMTP; 30 Apr 2019 09:11:25 -0700 Received: from andy by smile with local (Exim 4.92) (envelope-from ) id 1hLVLo-0007fS-1f; Tue, 30 Apr 2019 19:11:24 +0300 Date: Tue, 30 Apr 2019 19:11:24 +0300 From: Andy Shevchenko To: "Tobin C. Harding" Cc: "David S. Miller" , Greg Kroah-Hartman , Tyler Hicks , Ido Schimmel , Alexander Duyck , Florian Fainelli , Wang Hai , YueHaibing , Amritha Nambiar , Dmitry Torokhov , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 3/3] net-sysfs: Fix error path for kobject_init_and_add() Message-ID: <20190430161124.GM9224@smile.fi.intel.com> References: <20190430002817.10785-1-tobin@kernel.org> <20190430002817.10785-4-tobin@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190430002817.10785-4-tobin@kernel.org> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Apr 30, 2019 at 10:28:17AM +1000, Tobin C. Harding wrote: > Currently error return from kobject_init_and_add() is not followed by a > call to kobject_put(). This means there is a memory leak. > > Add call to kobject_put() in error path of kobject_init_and_add(). It's not obvious to me if this will help to fix what is stated in the (reverted) commit 6b70fc94afd1 ("net-sysfs: Fix memory leak in netdev_register_kobject")? If so, perhaps we need to tell syzkaller guys about this. -- With Best Regards, Andy Shevchenko