Check we have a stack as is done elsewhere

diff --git a/src/lib/unlang/interpret.c b/src/lib/unlang/interpret.c
index 040ab3f3928615ea7a12e585342fb5c5ec1f45b6..1418eebafaa29a69218d54b1887b173412d6edeb 100644 (file)
--- a/src/lib/unlang/interpret.c
+++ b/src/lib/unlang/interpret.c
@@ -1152,7 +1152,7 @@ void unlang_interpret_signal(request_t *request, fr_signal_t action)
                /*
                 *      If the request is yielded, mark it as runnable
                 */
-               if (is_yielded(&stack->frame[stack->depth]) && !unlang_request_is_scheduled(request)) {
+               if (stack && is_yielded(&stack->frame[stack->depth]) && !unlang_request_is_scheduled(request)) {
                        unlang_interpret_mark_runnable(request);
                }
                break;