3 files changed, 12 insertions, 5 deletions
diff --git a/ChangeLog b/ChangeLog
index 364e3613d8..8d5eaf4a02 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Thu Jun  5 12:22:28 2008  Yukihiro Matsumoto  <matz@ruby-lang.org>
+
+	* gc.c (id2ref): valid id should not refer T_VALUE nor T_ICLASS.
+	  [ruby-dev:31911]
+
 Wed Jun  4 16:41:19 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* Makefile.in (ext/extinit.o): use $(OUTFLAG) as well as other
diff --git a/gc.c b/gc.c
index 052df8f362..4298a8acf1 100644
--- a/gc.c
+++ b/gc.c
@@ -1922,6 +1922,7 @@ id2ref(obj, objid)
     VALUE obj, objid;
 {
     unsigned long ptr, p0;
+    int type;
 
     rb_secure(4);
     p0 = ptr = NUM2ULONG(objid);
@@ -1938,7 +1939,8 @@ id2ref(obj, objid)
         return ID2SYM(symid);
     }
 
-    if (!is_pointer_to_heap((void *)ptr)|| BUILTIN_TYPE(ptr) >= T_BLKTAG) {
+    if (!is_pointer_to_heap((void *)ptr)||
+	(type = BUILTIN_TYPE(ptr)) >= T_BLKTAG || type == T_ICLASS) {
 	rb_raise(rb_eRangeError, "0x%lx is not id value", p0);
     }
     if (BUILTIN_TYPE(ptr) == 0 || RBASIC(ptr)->klass == 0) {
diff --git a/version.h b/version.h
index de04faea90..4dd71717e2 100644
--- a/version.h
+++ b/version.h
@@ -1,15 +1,15 @@
 #define RUBY_VERSION "1.8.6"
-#define RUBY_RELEASE_DATE "2008-06-04"
+#define RUBY_RELEASE_DATE "2008-06-05"
 #define RUBY_VERSION_CODE 186
-#define RUBY_RELEASE_CODE 20080604
-#define RUBY_PATCHLEVEL 125
+#define RUBY_RELEASE_CODE 20080605
+#define RUBY_PATCHLEVEL 126
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8
 #define RUBY_VERSION_TEENY 6
 #define RUBY_RELEASE_YEAR 2008
 #define RUBY_RELEASE_MONTH 6
-#define RUBY_RELEASE_DAY 4
+#define RUBY_RELEASE_DAY 5
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];