From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 94BD1CA9EA0 for ; Fri, 25 Oct 2019 18:10:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 642A921D81 for ; Fri, 25 Oct 2019 18:10:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732699AbfJYSIU (ORCPT ); Fri, 25 Oct 2019 14:08:20 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:46568 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731326AbfJYSFk (ORCPT ); Fri, 25 Oct 2019 14:05:40 -0400 Received: from [167.98.27.226] (helo=deadeye) by shadbolt.decadent.org.uk with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1iO3xv-0008OJ-QN; Fri, 25 Oct 2019 19:05:35 +0100 Received: from ben by deadeye with local (Exim 4.92.2) (envelope-from ) id 1iO3xv-0001i6-1w; Fri, 25 Oct 2019 19:05:35 +0100 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, Denis Kirjanov , "Herbert Xu" , "Christophe Leroy" Date: Fri, 25 Oct 2019 19:03:09 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) X-Patchwork-Hint: ignore Subject: [PATCH 3.16 08/47] crypto: talitos - check AES key size In-Reply-To: X-SA-Exim-Connect-IP: 167.98.27.226 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.16.76-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Christophe Leroy commit 1ba34e71e9e56ac29a52e0d42b6290f3dc5bfd90 upstream. Although the HW accepts any size and silently truncates it to the correct length, the extra tests expects EINVAL to be returned when the key size is not valid. Signed-off-by: Christophe Leroy Fixes: 4de9d0b547b9 ("crypto: talitos - Add ablkcipher algorithms") Signed-off-by: Herbert Xu [bwh: Backported to 3.16: only cbc(aes) algorithm is supported] Signed-off-by: Ben Hutchings --- --- a/drivers/crypto/talitos.c +++ b/drivers/crypto/talitos.c @@ -1335,6 +1335,18 @@ static int ablkcipher_setkey(struct cryp return 0; } +static int ablkcipher_aes_setkey(struct crypto_ablkcipher *cipher, + const u8 *key, unsigned int keylen) +{ + if (keylen == AES_KEYSIZE_128 || keylen == AES_KEYSIZE_192 || + keylen == AES_KEYSIZE_256) + return ablkcipher_setkey(cipher, key, keylen); + + crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN); + + return -EINVAL; +} + static void common_nonsnoop_unmap(struct device *dev, struct talitos_edesc *edesc, struct ablkcipher_request *areq) @@ -2170,6 +2182,7 @@ static struct talitos_alg_template drive .min_keysize = AES_MIN_KEY_SIZE, .max_keysize = AES_MAX_KEY_SIZE, .ivsize = AES_BLOCK_SIZE, + .setkey = ablkcipher_aes_setkey, } }, .desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |