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Miller" Subject: [PATCH 22/22] crypto: vmx - add check for xts input length equal to zero Date: Fri, 7 Aug 2020 19:20:10 +0300 Message-Id: <20200807162010.18979-23-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> 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 16:22:24 +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: db6d582e-f312-4347-9a5e-08d83aee126e 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: SBvn7lOuFex1vjZwY6ydgy4jyzzZtHO/gIs0aX6QgEcPdzCCSf1BTS75NQCyVYdJhxSP0I7YP776icGqlcA72y4redHK7GrbO341CIUxvUqfvn7fG/27E5cEyBKZRZZ7Igs078iuPcSgbSVlRAlHv4tFAq9c0GyjtQHqLUdiSus8AGCNKaXb4PKRDlG7VyyMVa18vMVDqcfnV4O+U9UobRt5T293UwoAyu6KPelqjozk/XjKgdr6k6wqqjSPYVYE1DJRjFyxrnZWgGZCzRceXXiP3QgZxY+5rwYF5GxN/1Idw7fFmLzy++Q7l8axzmdotDZRXaa4U7mYbp0+0EBMhg== 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)(66574015)(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: db6d582e-f312-4347-9a5e-08d83aee126e X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Aug 2020 16:22:26.0819 (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: NL63hu0oDLC6Gd5K5C0q+EsW26/jq1TLUW9PHxLBY/jvSFuqGNyGLihFO0MIN9gakneY2u+S56Wo04AVePo9EA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB7359 X-Mailman-Approved-At: Sat, 08 Aug 2020 10:06:31 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-s390@vger.kernel.org, Andrei Botila , Nayna Jain , x86@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@axis.com, Paulo Flabiano Smorigo , linux-crypto@vger.kernel.org, =?utf-8?q?Breno_Leit=C3=A3o?= , Paul Mackerras , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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: "Breno Leitão" Cc: Nayna Jain Cc: Paulo Flabiano Smorigo Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Signed-off-by: Andrei Botila --- drivers/crypto/vmx/aes_xts.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/crypto/vmx/aes_xts.c b/drivers/crypto/vmx/aes_xts.c index 9fee1b1532a4..33107c9e2656 100644 --- a/drivers/crypto/vmx/aes_xts.c +++ b/drivers/crypto/vmx/aes_xts.c @@ -84,6 +84,9 @@ static int p8_aes_xts_crypt(struct skcipher_request *req, int enc) u8 tweak[AES_BLOCK_SIZE]; int ret; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL;