From c4d0d11c55f018026fc9c1db75fe7a4f8a38f81f Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Mon, 11 Jun 2018 22:11:45 -0400
Subject: [PATCH] [vector] Always 0-fill new items

---
 src/hb-private.hh | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/hb-private.hh b/src/hb-private.hh
index ac00e022b..32e335495 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -716,6 +716,9 @@ struct hb_vector_t
     if (!alloc (size))
       return false;
 
+    if (size > len)
+      memset (arrayZ + len, 0, (size - len) * sizeof (*arrayZ));
+
     len = size;
     return true;
   }