diff options
Diffstat (limited to 'crypto/hmac.c')
| -rw-r--r-- | crypto/hmac.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/crypto/hmac.c b/crypto/hmac.c index a68c1266121f..8b2a212eb0ad 100644 --- a/crypto/hmac.c +++ b/crypto/hmac.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Cryptographic API. * @@ -8,12 +9,6 @@ * * The HMAC implementation is derived from USAGI. * Copyright (c) 2002 Kazunori Miyazawa <miyazawa@linux-ipv6.org> / USAGI - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - * */ #include <crypto/hmac.h> @@ -157,6 +152,10 @@ static int hmac_init_tfm(struct crypto_tfm *tfm) parent->descsize = sizeof(struct shash_desc) + crypto_shash_descsize(hash); + if (WARN_ON(parent->descsize > HASH_MAX_DESCSIZE)) { + crypto_free_shash(hash); + return -EINVAL; + } ctx->hash = hash; return 0; |