1 files changed, 2 insertions, 1 deletions

diff --git a/crypto/ahash.c b/crypto/ahash.c
index 8acb886032ae..9c1dc8d6106a 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -544,7 +544,8 @@ static int ahash_prepare_alg(struct ahash_alg *alg)
         struct crypto_alg *base = &alg->halg.base;
 
         if (alg->halg.digestsize > PAGE_SIZE / 8 ||
-            alg->halg.statesize > PAGE_SIZE / 8)
+            alg->halg.statesize > PAGE_SIZE / 8 ||
+            alg->halg.statesize == 0)
                 return -EINVAL;
 
         base->cra_type = &crypto_ahash_type;