Fix Potential Handler Leaks #1

Add pclose before function out

Author: 903d09f6-e821-4655-9e8b-7e6068b26f74

kubernetes/config/exec_provider.c

@@ -75,6 +75,11 @@ int kube_exec_and_get_result(ExecCredential_t * exec_credential, const kubeconfi
         result_string = calloc(1, KUBECONFIG_EXEC_RESULT_BUFFER_SIZE);
         if (!result_string) {
             fprintf(stderr, "%s: Cannot allocate memory for command result.[%s]\n", fname, strerror(errno));
+#ifndef _WIN32
+            pclose(fp);
+#else
+            _pclose(fp);
+#endif
             return -1;
         }
         int result_string_remaining_size = KUBECONFIG_EXEC_RESULT_BUFFER_SIZE - 1;
@@ -85,6 +90,11 @@ int kube_exec_and_get_result(ExecCredential_t * exec_credential, const kubeconfi
             if (result_string_remaining_size <= 0) {
                 fprintf(stderr, "%s: The buffer for exec result is not sufficient.\n", fname);
                 rc = -1;
+#ifndef _WIN32
+                pclose(fp);
+#else
+                _pclose(fp);
+#endif
                 goto end;
             }
             strncat(result_string, string_buf, strlen(string_buf));