From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by dpdk.space (Postfix) with ESMTP id 9ECFCA0679 for ; Wed, 3 Apr 2019 18:35:31 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 567921B4E9; Wed, 3 Apr 2019 18:35:31 +0200 (CEST) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id D932A1B4BD; Wed, 3 Apr 2019 18:35:25 +0200 (CEST) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 03 Apr 2019 09:35:24 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,305,1549958400"; d="scan'208";a="139841679" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by fmsmga007.fm.intel.com with ESMTP; 03 Apr 2019 09:35:23 -0700 To: Thomas Monjalon , Mohammad Abdul Awal Cc: dev@dpdk.org, arybchenko@solarflare.com, stable@dpdk.org References: <20190403160726.1231-1-mohammad.abdul.awal@intel.com> <1807422.QXMQecOh3y@xps> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: <1807422.QXMQecOh3y@xps> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-stable] [PATCH 1/3] ethdev: fix null pointer checking X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" On 4/3/2019 5:27 PM, Thomas Monjalon wrote: > 03/04/2019 18:07, Mohammad Abdul Awal: >> Null value for parameter name will cause segfault for the >> strnlen and strcmp functions. > > I'm not sure we want such obvious checks for all APIs. > Here I would say yes. These are internal functions, not APIs. I am for verifying input for (all) APIs but not for internal functions, drivers should call them and they are in our control, if they are passing NULL we can fix them :) > >> Fixes: 0b33b68d12 ("ethdev: export allocate function") >> Fixes: 942661004c ("ethdev: export secondary attach function") >> Cc: stable@dpdk.org >> >> Signed-off-by: Mohammad Abdul Awal >> --- >> --- a/lib/librte_ethdev/rte_ethdev.c >> +++ b/lib/librte_ethdev/rte_ethdev.c >> @@ -440,6 +440,11 @@ rte_eth_dev_allocate(const char *name) >> struct rte_eth_dev *eth_dev = NULL; >> size_t name_len; >> >> + if (name == NULL) { >> + RTE_ETHDEV_LOG(ERR, "Null pointer is specified\n"); > > This is a very generic error message. > It might be "Fail to allocate port with empty name" > >> @@ -492,6 +497,11 @@ rte_eth_dev_attach_secondary(const char *name) >> uint16_t i; >> struct rte_eth_dev *eth_dev = NULL; >> >> + if (name == NULL) { >> + RTE_ETHDEV_LOG(ERR, "Null pointer is specified\n"); > > "Fail to attach port with empty name" > > >