evp_extra_test: Avoid potential double free of params

Fixes #14916

Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15135)

diff --git a/test/evp_extra_test.c b/test/evp_extra_test.c
index f8fdc7287df3a09259c4443d273e363e4a78eba4..7fd45bc316d8ca89ecafdc20f5d6b76f2af6ee7b 100644 (file)
--- a/test/evp_extra_test.c
+++ b/test/evp_extra_test.c
@@ -688,6 +688,7 @@ static int test_EC_priv_pub(void)
     if (!test_fromdata("EC", params))
         goto err;
     OSSL_PARAM_free(params);
+    params = NULL;
     OSSL_PARAM_BLD_free(bld);
 
     /* Test priv and !pub */
@@ -704,6 +705,7 @@ static int test_EC_priv_pub(void)
     if (!test_fromdata("EC", params))
         goto err;
     OSSL_PARAM_free(params);
+    params = NULL;
     OSSL_PARAM_BLD_free(bld);
 
     /* Test !priv and pub */
@@ -721,6 +723,7 @@ static int test_EC_priv_pub(void)
     if (!test_fromdata("EC", params))
         goto err;
     OSSL_PARAM_free(params);
+    params = NULL;
     OSSL_PARAM_BLD_free(bld);
 
     /* Test priv and pub */