From 19385a87103177770ee9f5ee4c5e3377d4ed20be Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Sun, 15 Dec 2024 23:23:07 +0900
Subject: [PATCH] vm.c (OP_ENTER): clear all registers region in the stack

To keep GC away from touching uninitialized values
---
 src/vm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vm.c b/src/vm.c
index 12ee4aa9e..8c1bb502d 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -2101,7 +2101,7 @@ RETRY_TRY_BLOCK:
         /* clear local (but non-argument) variables */
         mrb_int pos = m1+2;     /* self+m1+blk */
         if (irep->nlocals-pos  > 0) {
-          stack_clear(&regs[pos], irep->nlocals-pos);
+          stack_clear(&regs[pos], irep->nregs-pos);
         }
         NEXT;
       }