From patchwork Tue Nov 14 08:41:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134250 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 AF7DD43325; Tue, 14 Nov 2023 09:48:58 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 43CD040DC9; Tue, 14 Nov 2023 09:47:36 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 1A3AE406BC for ; Tue, 14 Nov 2023 09:47:22 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4SV0Dr56k1zPnZK; Tue, 14 Nov 2023 16:43:08 +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 16:47:20 +0800 From: Jie Hai To: , Jakub Palider , Tomasz Duszynski , Jerin Jacob CC: , , Subject: [PATCH v2 19/22] raw/cnxk_gpio: replace strtok with reentrant version Date: Tue, 14 Nov 2023 16:41:30 +0800 Message-ID: <20231114084133.3573959-20-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: ecc0dd455e9a ("raw/cnxk_gpio: add option to select subset of GPIOs") Cc: stable@dpdk.org Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- drivers/raw/cnxk_gpio/cnxk_gpio.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/raw/cnxk_gpio/cnxk_gpio.c b/drivers/raw/cnxk_gpio/cnxk_gpio.c index 29c250672646..0e6ee31d35c9 100644 --- a/drivers/raw/cnxk_gpio/cnxk_gpio.c +++ b/drivers/raw/cnxk_gpio/cnxk_gpio.c @@ -190,7 +190,7 @@ static int cnxk_gpio_parse_allowlist(struct cnxk_gpiochip *gpiochip, char *allowlist) { int i, ret, val, queue = 0; - char *token; + char *token, *sp = NULL; int *list; list = rte_calloc(NULL, gpiochip->num_gpios, sizeof(*list), 0); @@ -208,7 +208,7 @@ cnxk_gpio_parse_allowlist(struct cnxk_gpiochip *gpiochip, char *allowlist) allowlist[strlen(allowlist) - 1] = ' '; /* quiesce -Wcast-qual */ - token = strtok((char *)(uintptr_t)allowlist, ","); + token = strtok_s((char *)(uintptr_t)allowlist, ",", &sp); do { errno = 0; val = strtol(token, NULL, 10); @@ -234,7 +234,7 @@ cnxk_gpio_parse_allowlist(struct cnxk_gpiochip *gpiochip, char *allowlist) } if (i == queue) list[queue++] = val; - } while ((token = strtok(NULL, ","))); + } while ((token = strtok_s(NULL, ",", &sp))); free(allowlist); gpiochip->allowlist = list;