From patchwork Thu Mar 10 16:36:33 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Zhang, Helin" X-Patchwork-Id: 11426 X-Patchwork-Delegate: thomas@monjalon.net 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 A49C14A63; Thu, 10 Mar 2016 17:36:47 +0100 (CET) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by dpdk.org (Postfix) with ESMTP id DA4D647CE for ; Thu, 10 Mar 2016 17:36:45 +0100 (CET) Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP; 10 Mar 2016 08:36:45 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.24,316,1455004800"; d="scan'208";a="761737914" Received: from shvmail01.sh.intel.com ([10.239.29.42]) by orsmga003.jf.intel.com with ESMTP; 10 Mar 2016 08:36:43 -0800 Received: from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com [10.239.29.89]) by shvmail01.sh.intel.com with ESMTP id u2AGafg7015967; Fri, 11 Mar 2016 00:36:41 +0800 Received: from shecgisg004.sh.intel.com (localhost [127.0.0.1]) by shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP id u2AGacYN008539; Fri, 11 Mar 2016 00:36:40 +0800 Received: (from hzhan75@localhost) by shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id u2AGac2n008535; Fri, 11 Mar 2016 00:36:38 +0800 From: Helin Zhang To: dev@dpdk.org Date: Fri, 11 Mar 2016 00:36:33 +0800 Message-Id: <1457627793-8491-3-git-send-email-helin.zhang@intel.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1457627793-8491-1-git-send-email-helin.zhang@intel.com> References: <1457338370-32744-1-git-send-email-helin.zhang@intel.com> <1457627793-8491-1-git-send-email-helin.zhang@intel.com> Subject: [dpdk-dev] [PATCH v3 2/2] i40e: fix the overflow issue X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The array 'ptype_table' was defined in depth of 'UINT8_MAX' which is 255, while the querying index could be from 0 to 255. The issue can be fixed with expanding the array to one more element. Fixes: 9571ea028489 ("i40e: replace some offload flags with unified packet type") Signed-off-by: Helin Zhang --- drivers/net/i40e/i40e_rxtx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index f8efdce..e0c9bb6 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -198,7 +198,7 @@ i40e_get_iee15888_flags(struct rte_mbuf *mb, uint64_t qword) static inline uint32_t i40e_rxd_pkt_type_mapping(uint8_t ptype) { - static const uint32_t ptype_table[UINT8_MAX] __rte_cache_aligned = { + static const uint32_t type_table[UINT8_MAX + 1] __rte_cache_aligned = { /* L2 types */ /* [0] reserved */ [1] = RTE_PTYPE_L2_ETHER, @@ -724,7 +724,7 @@ i40e_rxd_pkt_type_mapping(uint8_t ptype) /* All others reserved */ }; - return ptype_table[ptype]; + return type_table[ptype]; } #define I40E_RX_DESC_EXT_STATUS_FLEXBH_MASK 0x03