From 59e581ed7811fc2afdeb410481e79adfe99e5a6a Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sat, 21 Nov 2020 15:30:03 +0900
Subject: Fix infinite loop bug from `super` when method is prepended.

---
 src/vm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/vm.c')

diff --git a/src/vm.c b/src/vm.c
index c87fa9dc6..73ab40712 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -1590,7 +1590,10 @@ RETRY_TRY_BLOCK:
         mrb_exc_set(mrb, exc);
         goto L_RAISE;
       }
-      if (target_class->tt == MRB_TT_MODULE) {
+      if (target_class->flags & MRB_FL_CLASS_IS_PREPENDED) {
+        target_class = ci->target_class;
+      }
+      else if (target_class->tt == MRB_TT_MODULE) {
         target_class = ci->target_class;
         if (target_class->tt != MRB_TT_ICLASS) {
           mrb_value exc = mrb_exc_new_lit(mrb, E_RUNTIME_ERROR, "superclass info lost [mruby limitations]");
-- 
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