* class.c (class_alloc): allocate extra memory after containing

  object setup to get rid of rare-but-potential memory leak.
* gc.c (gc_mark_children): skip marking extended members if ptr is
  NULL.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33400 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 2 deletions

diff --git a/class.c b/class.c
index e6c1f8fd11..b595473333 100644
--- a/class.c
+++ b/class.c
@@ -49,10 +49,9 @@ static ID id_attached;
 static VALUE
 class_alloc(VALUE flags, VALUE klass)
 {
-    rb_classext_t *ext = ALLOC(rb_classext_t);
     NEWOBJ(obj, struct RClass);
     OBJSETUP(obj, klass, flags);
-    obj->ptr = ext;
+    obj->ptr = ALLOC(rb_classext_t);
     RCLASS_IV_TBL(obj) = 0;
     RCLASS_CONST_TBL(obj) = 0;
     RCLASS_M_TBL(obj) = 0;