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Miller" Subject: [PATCH 05/22] crypto: powerpc/aes-spe - add check for xts input length equal to zero Date: Fri, 7 Aug 2020 19:19:53 +0300 Message-Id: <20200807162010.18979-6-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 16:21:47 +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: a0a2904b-c726-48b8-9361-08d83aedfc29 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: SlMo3UkERYXaNTRbHivDoBTwPH2QHtZ7DPiFvk3FsRAWLh4olJS+ji9JgECPxsiD11bRJe2wGeU2VKcaP+TbbG/EZ/n713cVOTy1g6iSb5UqRRZ+Ij387Hn17bc2PD/qQTTvo7RYUDqSQcyr6pRKQvv1vzzGvSHYyvZn4Leuq2Sk86auB9j4nN38GyX+5z9DakNuvkaQ3UORdHV+StQvDZe2Pvloh8JvYpXxEjwUnew65U3ykop5R15MXFWm2DpM5vgokgcDrEnE6B4CRv6227rGtelcKAybNUYVWlEygZXOh2uF8irDccBo+OeaxI2/cXI7OHYdglpzrF7PN1BMLw== 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: a0a2904b-c726-48b8-9361-08d83aedfc29 X-MS-Exchange-CrossTenant-AuthSource: VE1PR04MB6608.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Aug 2020 16:21:48.7117 (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: QWHxSCJHobGip8nPC0v3p21ehJjwuTt23qqmeX0HUXHPpJzfyhLcYIs6M/hgIzqJgpG5ODKSmBV457M3B56+rQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB7359 X-Mailman-Approved-At: Sat, 08 Aug 2020 10:06:29 +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 , x86@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@axis.com, Paul Mackerras , linux-crypto@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.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: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Signed-off-by: Andrei Botila --- arch/powerpc/crypto/aes-spe-glue.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/powerpc/crypto/aes-spe-glue.c b/arch/powerpc/crypto/aes-spe-glue.c index c2b23b69d7b1..f37d8bef322b 100644 --- a/arch/powerpc/crypto/aes-spe-glue.c +++ b/arch/powerpc/crypto/aes-spe-glue.c @@ -327,6 +327,9 @@ static int ppc_xts_encrypt(struct skcipher_request *req) u8 b[2][AES_BLOCK_SIZE]; int err; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; @@ -366,6 +369,9 @@ static int ppc_xts_decrypt(struct skcipher_request *req) le128 twk; int err; + if (!req->cryptlen) + return 0; + if (req->cryptlen < AES_BLOCK_SIZE) return -EINVAL; -- 2.17.1