From 2cbbeba0e091e95bc8456c29f6cab2c36b44a86b Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sun, 19 Mar 2017 00:21:53 +0900
Subject: [PATCH] Check call depth when mrb_yield_class() is called; ref #3521
---
src/vm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/vm.c b/src/vm.c
index e860cf9fd..3e40cecb0 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -668,6 +668,9 @@ mrb_yield_with_class(mrb_state *mrb, mrb_value b, mrb_int argc, const mrb_value
if (mrb_nil_p(b)) {
mrb_raise(mrb, E_ARGUMENT_ERROR, "no block given");
}
+ if (mrb->c->ci - mrb->c->cibase > MRB_FUNCALL_DEPTH_MAX) {
+ mrb_exc_raise(mrb, mrb_obj_value(mrb->stack_err));
+ }
p = mrb_proc_ptr(b);
ci = cipush(mrb);
ci->mid = mid;
--
2.26.2