https://git.ruby-lang.org/ruby.git/commit/?id=0213f5b08a

From 0213f5b08a470d322edb54bda85523d05b2ea4c7 Mon Sep 17 00:00:00 2001
From: Peter Zhu <peter@p...>
Date: Wed, 10 Jun 2020 10:17:56 -0400
Subject: Fix ASan crash


diff --git a/gc.c b/gc.c
index 3b2e7cd..d4ed316 100644
--- a/gc.c
+++ b/gc.c
@@ -11514,6 +11514,8 @@ const char * https://github.com/ruby/ruby/blob/trunk/gc.c#L11514
 rb_raw_obj_info(char *buff, const int buff_size, VALUE obj)
 {
     int pos = 0;
+    void *poisoned = asan_poisoned_object_p(obj);
+    asan_unpoison_object(obj, false);
 
 #define BUFF_ARGS buff + pos, buff_size - pos
 #define APPENDF(f) if ((pos += snprintf f) >= buff_size) goto end
@@ -11744,6 +11746,10 @@ rb_raw_obj_info(char *buff, const int buff_size, VALUE obj) https://github.com/ruby/ruby/blob/trunk/gc.c#L11746
 #undef C
     }
   end:
+    if (poisoned) {
+        asan_poison_object(obj);
+    }
+
     return buff;
 #undef APPENDF
 #undef BUFF_ARGS
-- 
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