From patchwork Fri Feb 17 14:50:29 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wiles, Keith" X-Patchwork-Id: 20513 X-Patchwork-Delegate: ferruh.yigit@amd.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id 08F3F2A5D; Fri, 17 Feb 2017 15:50:36 +0100 (CET) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by dpdk.org (Postfix) with ESMTP id C2BBF3B5 for ; Fri, 17 Feb 2017 15:50:33 +0100 (CET) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 17 Feb 2017 06:50:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.35,172,1484035200"; d="scan'208";a="824395521" Received: from skarlapu-mobl1.amr.corp.intel.com ([10.254.102.97]) by FMSMGA003.fm.intel.com with ESMTP; 17 Feb 2017 06:50:31 -0800 From: Keith Wiles To: dev@dpdk.org Date: Fri, 17 Feb 2017 08:50:29 -0600 Message-Id: <20170217145029.48002-1-keith.wiles@intel.com> X-Mailer: git-send-email 2.10.1 Subject: [dpdk-dev] [PATCH v2] net/tap: fix coverity warning on strncpy 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" Calling strncpy with a maximum size argument of 16 bytes on destination array "ifr.ifr_ifrn.ifrn_name" of size 16 bytes might leave the destination string unterminated. Signed-off-by: Keith Wiles --- drivers/net/tap/rte_eth_tap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c index efc4426..cf1cea3 100644 --- a/drivers/net/tap/rte_eth_tap.c +++ b/drivers/net/tap/rte_eth_tap.c @@ -297,7 +297,7 @@ tap_link_set_flags(struct pmd_internals *pmd, short flags, int add) return -1; } memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_name, pmd->name, IFNAMSIZ); + strncpy(ifr.ifr_name, pmd->name, IFNAMSIZ - 1); err = ioctl(s, SIOCGIFFLAGS, &ifr); if (err < 0) { RTE_LOG(WARNING, PMD, "Unable to get %s device flags: %s\n",