From 142f154a0a0863dc48cf767b2d1b5acec0371999 Mon Sep 17 00:00:00 2001
From: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date: Thu, 10 Dec 2020 18:16:15 +0900
Subject: [PATCH] Unpoison freelist to chain

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

diff --git a/gc.c b/gc.c
index d2e4e7cbbc..c583ed28da 100644
--- a/gc.c
+++ b/gc.c
@@ -2181,6 +2181,7 @@ ractor_cached_freeobj(rb_objspace_t *objspace, rb_ractor_t *cr)
     else {
         if (cr->newobj_cache.free_pages) {
             struct heap_page *page = cr->newobj_cache.free_pages;
+            asan_unpoison_memory_region(&page->freelist, sizeof(RVALUE*), false);
             cr->newobj_cache.free_pages = page->free_next;
             ractor_cache_fill_freelist(objspace, cr, page);
             goto retry;