https://git.ruby-lang.org/ruby.git/commit/?id=791d7d4947

From 791d7d49476e6363c1bd24af637a9581acc627bb Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@r...>
Date: Thu, 10 Jun 2021 15:15:35 +0900
Subject: Freeze command line script

---
 ruby.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/ruby.c b/ruby.c
index 9ca7c2a..0247c58 100644
--- a/ruby.c
+++ b/ruby.c
@@ -2051,6 +2051,7 @@ process_options(int argc, char **argv, ruby_cmdline_options_t *opt) https://github.com/ruby/ruby/blob/trunk/ruby.c#L2051
     rb_gvar_ractor_local("$-a");
 
     if ((rb_e_script = opt->e_script) != 0) {
+        rb_str_freeze(rb_e_script);
         rb_gc_register_mark_object(opt->e_script);
     }
 
-- 
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