rb_gc_impl_copy_finalizer: generate a new object id

byroot · hsbt · commit b8edf3a5cddf · 2025-05-20T13:15:17.000+09:00
Fix a regression introduced by: ruby/ruby#13155
diff --git a/gc/mmtk/mmtk.c b/gc/mmtk/mmtk.c
@@ -985,7 +985,8 @@ rb_gc_impl_copy_finalizer(void *objspace_ptr, VALUE dest, VALUE obj)
 
     int lev = rb_gc_vm_lock();
     if (RB_LIKELY(st_lookup(objspace->finalizer_table, obj, &data))) {
-        table = (VALUE)data;
+        table = rb_ary_dup((VALUE)data);
+        RARRAY_ASET(table, 0, rb_obj_id(dest));
         st_insert(objspace->finalizer_table, dest, table);
         FL_SET(dest, FL_FINALIZE);
     }

Original file line number	Diff line number	Diff line change
`@@ -985,7 +985,8 @@ rb_gc_impl_copy_finalizer(void *objspace_ptr, VALUE dest, VALUE obj)`
`985`	`985`
`986`	`986`	`int lev = rb_gc_vm_lock();`
`987`	`987`	`if (RB_LIKELY(st_lookup(objspace->finalizer_table, obj, &data))) {`
`988`		`- table = (VALUE)data;`
	`988`	`+ table = rb_ary_dup((VALUE)data);`
	`989`	`+ RARRAY_ASET(table, 0, rb_obj_id(dest));`
`989`	`990`	`st_insert(objspace->finalizer_table, dest, table);`
`990`	`991`	`FL_SET(dest, FL_FINALIZE);`
`991`	`992`	`}`