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 16DE3A00E6 for ; Wed, 20 Mar 2019 21:18:37 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 99EED1B399; Wed, 20 Mar 2019 21:18:35 +0100 (CET) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by dpdk.org (Postfix) with ESMTP id 8233E1B2AE; Wed, 20 Mar 2019 21:18:33 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 20 Mar 2019 13:18:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,249,1549958400"; d="scan'208";a="127172788" Received: from fyigit-mobl.ger.corp.intel.com (HELO [10.237.221.46]) ([10.237.221.46]) by orsmga008.jf.intel.com with ESMTP; 20 Mar 2019 13:18:29 -0700 To: Chaitanya Babu Talluri , dev@dpdk.org Cc: reshma.pattan@intel.com, jananeex.m.parthasarathy@intel.com, rmody@marvell.com, shshaikh@marvell.com, beilei.xing@intel.com, qi.z.zhang@intel.com, stable@dpdk.org References: <1552570471-32372-1-git-send-email-tallurix.chaitanya.babu@intel.com> <1552912870-3526-1-git-send-email-tallurix.chaitanya.babu@intel.com> From: Ferruh Yigit Openpgp: preference=signencrypt Autocrypt: addr=ferruh.yigit@intel.com; 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WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.5.3 MIME-Version: 1.0 In-Reply-To: <1552912870-3526-1-git-send-email-tallurix.chaitanya.babu@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Language: en-US Content-Transfer-Encoding: 7bit Subject: Re: [dpdk-dev] [PATCH v7] drivers/net: fix possible overflow using strlcat X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Message-ID: <20190320201829.sjUc8ir_ak7uXPuEFFXoUimFZDmlpM1742s-vmu9HEg@z> On 3/18/2019 12:41 PM, Chaitanya Babu Talluri wrote: > strcat does not check the destination length and there might be > chances of string overflow so instead of strcat, strlcat is used. > > Fixes: 540a211084 ("bnx2x: driver core") > Fixes: e163c18a15 ("net/i40e: update ptype and pctype info") > Cc: stable@dpdk.org > > Signed-off-by: Chaitanya Babu Talluri > --- > v7: Corrected title. > v6: Updated title. > v5: Removed strcat. > v4: Corrected usage of strlcat. > v3: Instead of strncat, used strlcat. > v2: Instead of strncat, used snprintf. > --- > drivers/net/bnx2x/bnx2x.c | 5 +++-- > drivers/net/i40e/i40e_ethdev.c | 4 ++-- > 2 files changed, 5 insertions(+), 4 deletions(-) > > diff --git a/drivers/net/bnx2x/bnx2x.c b/drivers/net/bnx2x/bnx2x.c > index 26b3828e8..fe0db021c 100644 > --- a/drivers/net/bnx2x/bnx2x.c > +++ b/drivers/net/bnx2x/bnx2x.c > @@ -25,6 +25,7 @@ > #include > #include > #include > +#include > > #define BNX2X_PMD_VER_PREFIX "BNX2X PMD" > #define BNX2X_PMD_VERSION_MAJOR 1 > @@ -11741,13 +11742,13 @@ static const char *get_bnx2x_flags(uint32_t flags) > > for (i = 0; i < 5; i++) > if (flags & (1 << i)) { > - strcat(flag_str, flag[i]); > + strlcat(flag_str, flag[i], sizeof(flag_str)) The patch doesn't compile because of the missing ';' Can you please at least try to compile before sending the patch!