Limit ecall() recursion levels; fix #3466

mruby · Mar 4, 2017 · 3b40a2f · 3b40a2f
1 parent ecee8c5
commit 3b40a2f
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/vm.c b/src/vm.c
@@ -292,6 +292,9 @@ ecall(mrb_state *mrb, int i)
   ptrdiff_t nstk;
 
   if (i<0) return;
+  if (mrb->c->ci - mrb->c->cibase > MRB_FUNCALL_DEPTH_MAX) {
+    mrb_exc_raise(mrb, mrb_obj_value(mrb->stack_err));
+  }
   p = mrb->c->ensure[i];
   if (!p) return;
   if (mrb->c->ci->eidx > i)