From e26df436bcf215d1a4520e9851aa607b0de0ca84 Mon Sep 17 00:00:00 2001
From: blueshade7 <ariza@typekit.com>
Date: Sat, 16 Nov 2019 19:12:34 -0800
Subject: [PATCH] fix test-ot-face crash

---
 src/hb-ot-cff1-table.hh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/hb-ot-cff1-table.hh b/src/hb-ot-cff1-table.hh
index ac6c9e4d5..70a4fffb7 100644
--- a/src/hb-ot-cff1-table.hh
+++ b/src/hb-ot-cff1-table.hh
@@ -1267,6 +1267,7 @@ struct cff1
 			      char *buf, unsigned int buf_len) const
     {
       if (!buf) return true;
+      if (unlikely (!is_valid ())) return false;
       hb_codepoint_t sid = glyph_to_sid (glyph);
       byte_str_t byte_str;
       const char *str;