diff --git a/src/libstrongswan/plugins/af_alg/af_alg_hasher.c b/src/libstrongswan/plugins/af_alg/af_alg_hasher.c
index 7fac236d4..3b07472fb 100644
--- a/src/libstrongswan/plugins/af_alg/af_alg_hasher.c
+++ b/src/libstrongswan/plugins/af_alg/af_alg_hasher.c
@@ -119,7 +119,12 @@ METHOD(hasher_t, allocate_hash, bool,
 	if (hash)
 	{
 		*hash = chunk_alloc(get_hash_size(this));
-		return get_hash(this, chunk, hash->ptr);
+		if (!get_hash(this, chunk, hash->ptr))
+		{
+			chunk_free(hash);
+			return FALSE;
+		}
+		return TRUE;
 	}
 	return get_hash(this, chunk, NULL);
 }
diff --git a/src/libstrongswan/plugins/botan/botan_hasher.c b/src/libstrongswan/plugins/botan/botan_hasher.c
index d574db0dc..0675fee80 100644
--- a/src/libstrongswan/plugins/botan/botan_hasher.c
+++ b/src/libstrongswan/plugins/botan/botan_hasher.c
@@ -89,7 +89,12 @@ METHOD(hasher_t, allocate_hash, bool,
 	if (hash)
 	{
 		*hash = chunk_alloc(get_hash_size(this));
-		return get_hash(this, chunk, hash->ptr);
+		if (!get_hash(this, chunk, hash->ptr))
+		{
+			chunk_free(hash);
+			return FALSE;
+		}
+		return TRUE;
 	}
 	return get_hash(this, chunk, NULL);
 }
diff --git a/src/libstrongswan/plugins/openssl/openssl_hasher.c b/src/libstrongswan/plugins/openssl/openssl_hasher.c
index cc3b1d1ac..fce1e329a 100644
--- a/src/libstrongswan/plugins/openssl/openssl_hasher.c
+++ b/src/libstrongswan/plugins/openssl/openssl_hasher.c
@@ -77,7 +77,12 @@ METHOD(hasher_t, allocate_hash, bool,
 	if (hash)
 	{
 		*hash = chunk_alloc(get_hash_size(this));
-		return get_hash(this, chunk, hash->ptr);
+		if (!get_hash(this, chunk, hash->ptr))
+		{
+			chunk_free(hash);
+			return FALSE;
+		}
+		return TRUE;
 	}
 	return get_hash(this, chunk, NULL);
 }
diff --git a/src/libstrongswan/plugins/wolfssl/wolfssl_hasher.c b/src/libstrongswan/plugins/wolfssl/wolfssl_hasher.c
index 5e9d851c2..cabd06d87 100644
--- a/src/libstrongswan/plugins/wolfssl/wolfssl_hasher.c
+++ b/src/libstrongswan/plugins/wolfssl/wolfssl_hasher.c
@@ -84,7 +84,12 @@ METHOD(hasher_t, allocate_hash, bool,
 	if (hash)
 	{
 		*hash = chunk_alloc(get_hash_size(this));
-		return get_hash(this, chunk, hash->ptr);
+		if (!get_hash(this, chunk, hash->ptr))
+		{
+			chunk_free(hash);
+			return FALSE;
+		}
+		return TRUE;
 	}
 	return get_hash(this, chunk, NULL);
 }