diff --git a/crypto/ahash.c b/crypto/ahash.c
index a83e035d9a3f55dbfb30a9931cf29caccd995079..8c1f918a6878bbb2883a5609bbe9cf1f61a49bca 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -68,7 +68,7 @@ static int crypto_init_ahash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
 	struct ahash_alg *alg = &tfm->__crt_alg->cra_ahash;
 	struct ahash_tfm *crt   = &tfm->crt_ahash;
 
-	if (alg->digestsize > crypto_tfm_alg_blocksize(tfm))
+	if (alg->digestsize > PAGE_SIZE / 8)
 		return -EINVAL;
 
 	crt->init = alg->init;
diff --git a/crypto/digest.c b/crypto/digest.c
index 025c9aea24ed814b87ddbd1fa445bfd28fcf6f33..d63d5d96feecc4e7e040765d4719992737b0c345 100644
--- a/crypto/digest.c
+++ b/crypto/digest.c
@@ -141,7 +141,7 @@ int crypto_init_digest_ops(struct crypto_tfm *tfm)
 	struct hash_tfm *ops = &tfm->crt_hash;
 	struct digest_alg *dalg = &tfm->__crt_alg->cra_digest;
 
-	if (dalg->dia_digestsize > crypto_tfm_alg_blocksize(tfm))
+	if (dalg->dia_digestsize > PAGE_SIZE / 8)
 		return -EINVAL;
 	
 	ops->init	= init;
diff --git a/crypto/hash.c b/crypto/hash.c
index f9400a014e74b3bbb3147b046aae36dad6abfad4..0d7caa9ab748d96883f4dbfeb2612aab5b5e314f 100644
--- a/crypto/hash.c
+++ b/crypto/hash.c
@@ -152,7 +152,7 @@ static int crypto_init_hash_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
 {
 	struct hash_alg *alg = &tfm->__crt_alg->cra_hash;
 
-	if (alg->digestsize > crypto_tfm_alg_blocksize(tfm))
+	if (alg->digestsize > PAGE_SIZE / 8)
 		return -EINVAL;
 
 	if ((mask & CRYPTO_ALG_TYPE_HASH_MASK) != CRYPTO_ALG_TYPE_HASH_MASK)
diff --git a/crypto/hmac.c b/crypto/hmac.c
index 14c6351e639d9484aa093fac191c7919a99127b4..7ff2d6a8c7d0b5c58b753140cd579e332e385819 100644
--- a/crypto/hmac.c
+++ b/crypto/hmac.c
@@ -226,6 +226,7 @@ static struct crypto_instance *hmac_alloc(struct rtattr **tb)
 	struct crypto_instance *inst;
 	struct crypto_alg *alg;
 	int err;
+	int ds;
 
 	err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_HASH);
 	if (err)
@@ -236,6 +237,13 @@ static struct crypto_instance *hmac_alloc(struct rtattr **tb)
 	if (IS_ERR(alg))
 		return ERR_CAST(alg);
 
+	inst = ERR_PTR(-EINVAL);
+	ds = (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
+	     CRYPTO_ALG_TYPE_HASH ? alg->cra_hash.digestsize :
+				    alg->cra_digest.dia_digestsize;
+	if (ds > alg->cra_blocksize)
+		goto out_put_alg;
+
 	inst = crypto_alloc_instance("hmac", alg);
 	if (IS_ERR(inst))
 		goto out_put_alg;
@@ -246,14 +254,10 @@ static struct crypto_instance *hmac_alloc(struct rtattr **tb)
 	inst->alg.cra_alignmask = alg->cra_alignmask;
 	inst->alg.cra_type = &crypto_hash_type;
 
-	inst->alg.cra_hash.digestsize =
-		(alg->cra_flags & CRYPTO_ALG_TYPE_MASK) ==
-		CRYPTO_ALG_TYPE_HASH ? alg->cra_hash.digestsize :
-				       alg->cra_digest.dia_digestsize;
+	inst->alg.cra_hash.digestsize = ds;
 
 	inst->alg.cra_ctxsize = sizeof(struct hmac_ctx) +
-				ALIGN(inst->alg.cra_blocksize * 2 +
-				      inst->alg.cra_hash.digestsize,
+				ALIGN(inst->alg.cra_blocksize * 2 + ds,
 				      sizeof(void *));
 
 	inst->alg.cra_init = hmac_init_tfm;