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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 , Catalin Marinas , Will Deacon Subject: [PATCH 03/22] crypto: arm64/aes - add check for xts input length equal to zero Date: Fri, 7 Aug 2020 19:19:51 +0300 Message-Id: <20200807162010.18979-4-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 16:21:43 +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: 83d861c4-7269-47f5-3654-08d83aedf977 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:4941; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: oZwVRe6Vp60/RcZhOWUSU/C42BEFpyZs3tLpHMmMwX4MB+GpEVmPnnUcdwP2MBZGriMWLaGe0EPJxWagpHs9YranNO0aSVbO0xIavRNo8hrF+RpkhzIn0GnA7dIeA8fgBOgOgeexL1ouTtF3ak8AsERvCuRDQnQhLGENxd1oOfHc4Jbnijp5n829qTjf8Rmjej/PsAuDwUMShc6t7LqWznSnc1LRkrUapzywY89AdP+sUp7WKBIAXlxxo4wruJZ/Bp0+dUuWT8oolXTllSEOdxyBi9NDeiN0BVHe2VyGH5Ggd0Os91TQkzLHRIl9XttSATLAl1bHeuO5DFWtHLUl1A== 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)(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: 83d861c4-7269-47f5-3654-08d83aedf977 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Aug 2020 16:21:44.1823 (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: E+v86ksYwg4bFY2635IOQvq4aaEdWZj5hajWWGyS5u5po8rmLreRQGVzcin2DeN/dECpKx0ANOOgiG9BiZ393Q== 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: Catalin Marinas Cc: Will Deacon Signed-off-by: Andrei Botila --- arch/arm64/crypto/aes-glue.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/crypto/aes-glue.c b/arch/arm64/crypto/aes-glue.c index 395bbf64b2ab..44c9644c74b1 100644 --- a/arch/arm64/crypto/aes-glue.c +++ b/arch/arm64/crypto/aes-glue.c @@ -515,6 +515,9 @@ static int __maybe_unused xts_encrypt(struct skcipher_request *req) struct scatterlist *src, *dst; struct skcipher_walk walk; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; @@ -587,6 +590,9 @@ static int __maybe_unused xts_decrypt(struct skcipher_request *req) struct scatterlist *src, *dst; struct skcipher_walk walk; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; -- 2.17.1