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Miller" Cc: linux-crypto@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, x86@kernel.org, linux-arm-kernel@axis.com, Andrei Botila , Tom Lendacky , John Allen Subject: [PATCH 15/22] crypto: ccp - add check for xts input length equal to zero Date: Fri, 7 Aug 2020 19:20:03 +0300 Message-Id: <20200807162010.18979-16-andrei.botila@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200807162010.18979-1-andrei.botila@oss.nxp.com> References: <20200807162010.18979-1-andrei.botila@oss.nxp.com> Content-Type: text/plain X-ClientProxiedBy: AM0PR04CA0075.eurprd04.prod.outlook.com (2603:10a6:208:be::16) To VE1PR04MB6608.eurprd04.prod.outlook.com (2603:10a6:803:125::12) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv15007.swis.ro-buh01.nxp.com (83.217.231.2) by AM0PR04CA0075.eurprd04.prod.outlook.com (2603:10a6:208:be::16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3261.15 via Frontend Transport; Fri, 7 Aug 2020 16:22:10 +0000 X-Mailer: git-send-email 2.17.1 X-Originating-IP: [83.217.231.2] X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 4c8aea55-aa12-4cc0-c174-08d83aee098d X-MS-TrafficTypeDiagnostic: VE1PR04MB7359: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:2733; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: EOK+n5XPW2kbFHr0PjIzG8/ZrsoCyK2Uynv3LrD5ARVj3nsPGg47vJuiKVxr2Z/eVFq8Y+XfuTQOVGLZ4PNqooNOMKR7fxDIEw4bdcw6asCxJsAxFR1301bdNj1JlYfC+r0yva+gLx98ROyNB7eatZrClWu6ckFXNJRUKdCu3MBgbcEsqw65N7uh8FyFGQNBxpPoTFLnanPjLMtD9qcBABIk4z+vL1eyqyWFR5yD7q1FzUfTYwPEx7KFZkw7z9bXH2To539e5rRMbniXQNyS+tYa0InYiQ+UueIQ+aofeBqFKSQ27KBRR2+X486m7j6eIeck+9IjrmmEV4XanZlHjw== X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:VE1PR04MB6608.eurprd04.prod.outlook.com;PTR:;CAT:NONE;SFTY:;SFS:(4636009)(39860400002)(366004)(136003)(346002)(396003)(376002)(44832011)(66556008)(66476007)(110136005)(7416002)(54906003)(1076003)(6506007)(4326008)(66946007)(83380400001)(8936002)(316002)(26005)(956004)(186003)(16526019)(478600001)(4744005)(86362001)(5660300002)(6666004)(6512007)(2906002)(8676002)(2616005)(52116002)(6486002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4c8aea55-aa12-4cc0-c174-08d83aee098d X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Aug 2020 16:22:11.1736 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: EigcJqHnY4F2wXL97v4Eo4RB3trGiN4a+m8ANaUAUxjNl2juZQDJi95rfQyenyvJroXCf1hGDdVQUZ7PJJEHZg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB7359 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Andrei Botila Standardize the way input lengths equal to 0 are handled in all skcipher algorithms. All the algorithms return 0 for input lengths equal to zero. Cc: Tom Lendacky Cc: John Allen Signed-off-by: Andrei Botila --- drivers/crypto/ccp/ccp-crypto-aes-xts.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/ccp/ccp-crypto-aes-xts.c b/drivers/crypto/ccp/ccp-crypto-aes-xts.c index 6849261ca47d..6a93b54d388a 100644 --- a/drivers/crypto/ccp/ccp-crypto-aes-xts.c +++ b/drivers/crypto/ccp/ccp-crypto-aes-xts.c @@ -113,6 +113,9 @@ static int ccp_aes_xts_crypt(struct skcipher_request *req, u32 unit_size; int ret; + if (!req->cryptlen) + return 0; + if (!ctx->u.aes.key_len) return -EINVAL; -- 2.17.1