From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756368Ab3LQShT (ORCPT ); Tue, 17 Dec 2013 13:37:19 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:60869 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755628Ab3LQSO3 (ORCPT ); Tue, 17 Dec 2013 13:14:29 -0500 From: Luis Henriques To: linux-kernel@vger.kernel.org, stable@vger.kernel.org, kernel-team@lists.ubuntu.com Cc: Tom Lendacky , Herbert Xu , Luis Henriques Subject: [PATCH 3.5 033/103] crypto: authenc - Find proper IV address in ablkcipher callback Date: Tue, 17 Dec 2013 18:12:22 +0000 Message-Id: <1387304012-23805-34-git-send-email-luis.henriques@canonical.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1387304012-23805-1-git-send-email-luis.henriques@canonical.com> References: <1387304012-23805-1-git-send-email-luis.henriques@canonical.com> X-Extended-Stable: 3.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.5.7.28 -stable review patch. If anyone has any objections, please let me know. ------------------ From: Tom Lendacky commit fc019c7122dfcd69c50142b57a735539aec5da95 upstream. When performing an asynchronous ablkcipher operation the authenc completion callback routine is invoked, but it does not locate and use the proper IV. The callback routine, crypto_authenc_encrypt_done, is updated to use the same method of calculating the address of the IV as is done in crypto_authenc_encrypt function which sets up the callback. Signed-off-by: Tom Lendacky Signed-off-by: Herbert Xu Signed-off-by: Luis Henriques --- crypto/authenc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/crypto/authenc.c b/crypto/authenc.c index 5ef7ba6..d21da2f 100644 --- a/crypto/authenc.c +++ b/crypto/authenc.c @@ -368,9 +368,10 @@ static void crypto_authenc_encrypt_done(struct crypto_async_request *req, if (!err) { struct crypto_aead *authenc = crypto_aead_reqtfm(areq); struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc); - struct ablkcipher_request *abreq = aead_request_ctx(areq); - u8 *iv = (u8 *)(abreq + 1) + - crypto_ablkcipher_reqsize(ctx->enc); + struct authenc_request_ctx *areq_ctx = aead_request_ctx(areq); + struct ablkcipher_request *abreq = (void *)(areq_ctx->tail + + ctx->reqoff); + u8 *iv = (u8 *)abreq - crypto_ablkcipher_ivsize(ctx->enc); err = crypto_authenc_genicv(areq, iv, 0); } -- 1.8.3.2