From 123aa04f7b3241d6e43de2d472c4a1cbdb250ac7 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Thu, 28 Apr 2011 12:58:28 -0400
Subject: [PATCH] Fix possible but improbable overflow in hb_array_t

---
 src/hb-private.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-private.hh b/src/hb-private.hh
index ce09d18..ca37084 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -297,7 +297,7 @@ struct hb_static_array_t {
 	array = new_array;
       }
     } else {
-      bool overflows = new_allocated >= ((unsigned int) -1) / sizeof (Type);
+      bool overflows = (new_allocated < allocated) || (new_allocated >= ((unsigned int) -1) / sizeof (Type));
       if (unlikely (overflows))
         new_array = NULL;
       else
-- 
2.7.4