From a70c522520d967844c01fa01459edc698fc54544 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Wed, 15 Jul 2009 20:39:05 +0800 Subject: crypto: ahash - Fix setkey crash When the alignment check was made unconditional for ahash we may end up crashing on shash algorithms because we're always calling alg->setkey instead of tfm->setkey. This patch fixes it. Signed-off-by: Herbert Xu --- crypto/ahash.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'crypto') diff --git a/crypto/ahash.c b/crypto/ahash.c index ac0798d2824..28a33d06c27 100644 --- a/crypto/ahash.c +++ b/crypto/ahash.c @@ -145,7 +145,6 @@ int crypto_hash_walk_first_compat(struct hash_desc *hdesc, static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { - struct ahash_alg *ahash = crypto_ahash_alg(tfm); unsigned long alignmask = crypto_ahash_alignmask(tfm); int ret; u8 *buffer, *alignbuffer; @@ -158,7 +157,7 @@ static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, alignbuffer = (u8 *)ALIGN((unsigned long)buffer, alignmask + 1); memcpy(alignbuffer, key, keylen); - ret = ahash->setkey(tfm, alignbuffer, keylen); + ret = tfm->setkey(tfm, alignbuffer, keylen); kzfree(buffer); return ret; } @@ -166,13 +165,12 @@ static int ahash_setkey_unaligned(struct crypto_ahash *tfm, const u8 *key, int crypto_ahash_setkey(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen) { - struct ahash_alg *ahash = crypto_ahash_alg(tfm); unsigned long alignmask = crypto_ahash_alignmask(tfm); if ((unsigned long)key & alignmask) return ahash_setkey_unaligned(tfm, key, keylen); - return ahash->setkey(tfm, key, keylen); + return tfm->setkey(tfm, key, keylen); } EXPORT_SYMBOL_GPL(crypto_ahash_setkey); -- cgit v1.2.3