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https://bugs.gentoo.org/463444
From 9ab3ce124616cb12bd39c6aa1e1bde0f46969b29 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Mon, 18 Mar 2013 19:29:41 +0100
Subject: [PATCH] e_aes_cbc_hmac_sha1.c: fix rare bad record mac on AES-NI
plaforms.
PR: 3002
(cherry picked from commit 5c60046553716fcf160718f59160493194f212dc)
---
crypto/evp/e_aes_cbc_hmac_sha1.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/crypto/evp/e_aes_cbc_hmac_sha1.c b/crypto/evp/e_aes_cbc_hmac_sha1.c
index 483e04b..fb2c884 100644
--- a/crypto/evp/e_aes_cbc_hmac_sha1.c
+++ b/crypto/evp/e_aes_cbc_hmac_sha1.c
@@ -328,10 +328,11 @@ static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
if (res!=SHA_CBLOCK) continue;
- mask = 0-((inp_len+8-j)>>(sizeof(j)*8-1));
+ /* j is not incremented yet */
+ mask = 0-((inp_len+7-j)>>(sizeof(j)*8-1));
data->u[SHA_LBLOCK-1] |= bitlen&mask;
sha1_block_data_order(&key->md,data,1);
- mask &= 0-((j-inp_len-73)>>(sizeof(j)*8-1));
+ mask &= 0-((j-inp_len-72)>>(sizeof(j)*8-1));
pmac->u[0] |= key->md.h0 & mask;
pmac->u[1] |= key->md.h1 & mask;
pmac->u[2] |= key->md.h2 & mask;
--
1.8.2.1
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