From patchwork Tue Nov 14 08:41:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134239 X-Patchwork-Delegate: thomas@monjalon.net 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 F0F6843325; Tue, 14 Nov 2023 09:47:57 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 89DED40A70; Tue, 14 Nov 2023 09:47:23 +0100 (CET) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id 00D93402EF for ; Tue, 14 Nov 2023 09:47:16 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.53]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4SV0KH3ZxhzvQjq for ; Tue, 14 Nov 2023 16:46:59 +0800 (CST) Received: from localhost.localdomain (10.67.165.2) by kwepemd100004.china.huawei.com (7.221.188.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.1258.23; Tue, 14 Nov 2023 16:47:14 +0800 From: Jie Hai To: , Chengwen Feng , Kevin Laatz , Bruce Richardson , Sean Morrissey , Conor Walsh CC: , Subject: [PATCH v2 09/22] dmadev: replace strtok with reentrant version Date: Tue, 14 Nov 2023 16:41:20 +0800 Message-ID: <20231114084133.3573959-10-haijie1@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20231114084133.3573959-1-haijie1@huawei.com> References: <20231113104550.2138654-1-haijie1@huawei.com> <20231114084133.3573959-1-haijie1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.67.165.2] X-ClientProxiedBy: dggems701-chm.china.huawei.com (10.3.19.178) To kwepemd100004.china.huawei.com (7.221.188.31) X-CFilter-Loop: Reflected 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 Multiple threads calling the same function may cause condition race issues, which often leads to abnormal behavior and can cause more serious vulnerabilities such as abnormal termination, denial of service, and compromised data integrity. The strtok() is non-reentrant, it is better to replace it with a reentrant version. Fixes: 39b5ab60df30 ("dmadev: add telemetry") Cc: stable@dpdk.org Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- lib/dmadev/rte_dmadev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/dmadev/rte_dmadev.c b/lib/dmadev/rte_dmadev.c index 4e5e420c82a5..e9c052304393 100644 --- a/lib/dmadev/rte_dmadev.c +++ b/lib/dmadev/rte_dmadev.c @@ -971,7 +971,7 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused, struct rte_dma_info dma_info; struct rte_dma_stats dma_stats; int dev_id, ret, vchan_id; - char *end_param; + char *end_param, *sp = NULL; const char *vchan_param; if (params == NULL || strlen(params) == 0 || !isdigit(*params)) @@ -990,7 +990,7 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused, if (dma_info.nb_vchans == 1 && *end_param == '\0') vchan_id = 0; else { - vchan_param = strtok(end_param, ","); + vchan_param = strtok_s(end_param, ",", &sp); if (!vchan_param || strlen(vchan_param) == 0 || !isdigit(*vchan_param)) return -EINVAL;