Coverty fixes for MACs

Reviewed-by: Shane Lontis <shane.lontis@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/9700)

1 files changed, 5 insertions, 3 deletions

diff --git a/test/evp_test.c b/test/evp_test.c
index 17b9fc0dfb..fd50c71354 100644
--- a/test/evp_test.c
+++ b/test/evp_test.c
@@ -1228,9 +1228,11 @@ static int mac_test_run_mac(EVP_TEST *t)
         if (tmpval != NULL)
             *tmpval++ = '\0';
 
-        if (!OSSL_PARAM_allocate_from_text(&params[params_n], defined_params,
-                                           tmpkey, tmpval,
-                                           strlen(tmpval))) {
+        if (tmpval == NULL
+            || !OSSL_PARAM_allocate_from_text(&params[params_n],
+                                              defined_params,
+                                              tmpkey, tmpval,
+                                              strlen(tmpval))) {
             OPENSSL_free(tmpkey);
             t->err = "MAC_PARAM_ERROR";
             goto err;