From patchwork Thu Jul 8 08:44:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Yu, DapengX" X-Patchwork-Id: 95525 X-Patchwork-Delegate: andrew.rybchenko@oktetlabs.ru Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id E0D76A0C49; Thu, 8 Jul 2021 10:45:09 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 629F94069C; Thu, 8 Jul 2021 10:45:09 +0200 (CEST) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by mails.dpdk.org (Postfix) with ESMTP id 4854040687; Thu, 8 Jul 2021 10:45:07 +0200 (CEST) X-IronPort-AV: E=McAfee;i="6200,9189,10038"; a="206453898" X-IronPort-AV: E=Sophos;i="5.84,222,1620716400"; d="scan'208";a="206453898" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2021 01:45:05 -0700 X-IronPort-AV: E=Sophos;i="5.84,222,1620716400"; d="scan'208";a="498352310" Received: from unknown (HELO localhost.localdomain) ([10.240.183.93]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jul 2021 01:45:03 -0700 From: dapengx.yu@intel.com To: Jasvinder Singh , Cristian Dumitrescu Cc: dev@dpdk.org, Dapeng Yu , stable@dpdk.org Date: Thu, 8 Jul 2021 16:44:57 +0800 Message-Id: <20210708084457.690538-1-dapengx.yu@intel.com> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Subject: [dpdk-dev] [PATCH] net/softnic: fix memory leak in parsing arguments X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 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" From: Dapeng Yu In function pmd_parse_args(), firmware path is duplicated from device arguments as character string, but is never freed, which cause memory leak. This patch changes the type of firmware member of struct pmd_params to character array, to make memory resource release unnecessary, and changes the type of name member to character array, to keep the consistency of character string handling in struct pmd_params. Fixes: 7e68bc20f8c8 ("net/softnic: restructure") Cc: stable@dpdk.org Signed-off-by: Dapeng Yu --- drivers/net/softnic/rte_eth_softnic.c | 9 ++++++--- drivers/net/softnic/rte_eth_softnic_internals.h | 4 ++-- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/net/softnic/rte_eth_softnic.c b/drivers/net/softnic/rte_eth_softnic.c index f64023256d..4d2f93e9c6 100644 --- a/drivers/net/softnic/rte_eth_softnic.c +++ b/drivers/net/softnic/rte_eth_softnic.c @@ -440,6 +440,7 @@ pmd_parse_args(struct pmd_params *p, const char *params) { struct rte_kvargs *kvlist; int ret = 0; + char *firmware = NULL; kvlist = rte_kvargs_parse(params, pmd_valid_args); if (kvlist == NULL) @@ -447,7 +448,7 @@ pmd_parse_args(struct pmd_params *p, const char *params) /* Set default values */ memset(p, 0, sizeof(*p)); - p->firmware = SOFTNIC_FIRMWARE; + snprintf(p->firmware, sizeof(p->firmware), "%s", SOFTNIC_FIRMWARE); p->cpu_id = SOFTNIC_CPU_ID; p->sc = SOFTNIC_SC; p->tm.n_queues = SOFTNIC_TM_N_QUEUES; @@ -468,10 +469,12 @@ pmd_parse_args(struct pmd_params *p, const char *params) /* Firmware script (optional) */ if (rte_kvargs_count(kvlist, PMD_PARAM_FIRMWARE) == 1) { ret = rte_kvargs_process(kvlist, PMD_PARAM_FIRMWARE, - &get_string, &p->firmware); + &get_string, &firmware); if (ret < 0) goto out_free; } + snprintf(p->firmware, sizeof(p->firmware), "%s", firmware); + free(firmware); /* Connection listening port (optional) */ if (rte_kvargs_count(kvlist, PMD_PARAM_CONN_PORT) == 1) { @@ -621,7 +624,7 @@ pmd_probe(struct rte_vdev_device *vdev) if (status) return status; - p.name = name; + snprintf(p.name, sizeof(p.name), "%s", name); /* Allocate and initialize soft ethdev private data */ dev_private = pmd_init(&p); diff --git a/drivers/net/softnic/rte_eth_softnic_internals.h b/drivers/net/softnic/rte_eth_softnic_internals.h index 1b3186ef0b..a13d67b7c1 100644 --- a/drivers/net/softnic/rte_eth_softnic_internals.h +++ b/drivers/net/softnic/rte_eth_softnic_internals.h @@ -34,8 +34,8 @@ */ struct pmd_params { - const char *name; - const char *firmware; + char name[RTE_DEV_NAME_MAX_LEN]; + char firmware[PATH_MAX]; uint16_t conn_port; uint32_t cpu_id; int sc; /**< Service cores. */