diff --git a/wolfcrypt/src/evp.c b/wolfcrypt/src/evp.c
index 7225e7424..b49c83422 100644
--- a/wolfcrypt/src/evp.c
+++ b/wolfcrypt/src/evp.c
@@ -313,7 +313,8 @@ WOLFSSL_API int wolfSSL_EVP_CipherUpdate(WOLFSSL_EVP_CIPHER_CTX *ctx,
     int fill;
 
     *outl = 0;
-    if ((ctx == NULL) || (inl < 0))return BAD_FUNC_ARG;
+    if ((ctx == NULL) || (inl < 0) ||
+        (outl == NULL)|| (out == NULL) || (in == NULL))return BAD_FUNC_ARG;
     WOLFSSL_ENTER("wolfSSL_EVP_CipherUpdate");
 
     if (inl == 0) return WOLFSSL_FAILURE;