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dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 12.22.5.235 as permitted sender) receiver=protection.outlook.com; client-ip=12.22.5.235; helo=mail.nvidia.com; Received: from mail.nvidia.com (12.22.5.235) by CO1NAM11FT027.mail.protection.outlook.com (10.13.174.224) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.4801.14 via Frontend Transport; Thu, 16 Dec 2021 18:40:59 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by DRHQMAIL107.nvidia.com (10.27.9.16) with Microsoft SMTP Server (TLS) id 15.0.1497.18; Thu, 16 Dec 2021 18:40:59 +0000 Received: from nvidia.com (172.20.187.5) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.986.9; Thu, 16 Dec 2021 10:40:57 -0800 From: To: CC: Matan Azrad , Raslan Darawsheh , Viacheslav Ovsiienko , Michael Baum , Subject: [PATCH] common/mlx5: fix missing validation in devargs parsing Date: Thu, 16 Dec 2021 20:40:40 +0200 Message-ID: <20211216184040.819861-1-michaelba@nvidia.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.20.187.5] X-ClientProxiedBy: HQMAIL101.nvidia.com (172.20.187.10) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: a3acb0bf-722b-46b9-065a-08d9c0c39afb X-MS-TrafficTypeDiagnostic: MN2PR12MB3117:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8273; 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CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:mail.nvidia.com; PTR:InfoNoRecords; CAT:NONE; SFS:(4636009)(46966006)(36840700001)(40470700001)(83380400001)(47076005)(4326008)(8676002)(7696005)(8936002)(426003)(82310400004)(55016003)(86362001)(36756003)(6666004)(508600001)(316002)(40460700001)(5660300002)(356005)(2616005)(26005)(36860700001)(450100002)(16526019)(34020700004)(70206006)(81166007)(2876002)(6916009)(70586007)(186003)(6286002)(54906003)(336012)(1076003)(2906002)(36900700001); DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Dec 2021 18:40:59.9684 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a3acb0bf-722b-46b9-065a-08d9c0c39afb X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[12.22.5.235]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT027.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3117 X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org From: Michael Baum The rte_kvargs_parse function parses the arguments "key=value,key=value,..." string and return an allocated structure that contains a key/value list. It enables also to send a key without value and updates the values in the following ways: - "key=value,key,..." - value is updated as NULL. - "key=value,key=,..." - value is updated as "" (empty string). Mlx5 PMDs use this function to parse, but they don't support key without value. They send the value as an argument to strtol function. When strtol gets NULL as a parameter it cause a crash, when it gets "" (empty string) it returns 0. Adds a check that will prevent an argument in these formats, and returns an error for it. Fixes: 85209924039c4 ("common/mlx5: share memory related devargs") Cc: stable@dpdk.org Signed-off-by: Michael Baum Acked-by: Matan Azrad --- drivers/common/mlx5/mlx5_common.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/common/mlx5/mlx5_common.c b/drivers/common/mlx5/mlx5_common.c index f1650f94c6..76cfeafef8 100644 --- a/drivers/common/mlx5/mlx5_common.c +++ b/drivers/common/mlx5/mlx5_common.c @@ -111,6 +111,11 @@ mlx5_common_args_check_handler(const char *key, const char *val, void *opaque) struct mlx5_common_dev_config *config = opaque; signed long tmp; + if (val == NULL || *val == '\0') { + DRV_LOG(ERR, "Key %s is missing value.", key); + rte_errno = EINVAL; + return -rte_errno; + } errno = 0; tmp = strtol(val, NULL, 0); if (errno) { -- 2.25.1