From 1e4fe10b98a291787ae561beca80cb70b481b108 Mon Sep 17 00:00:00 2001
From: Garret Rieger <grieger@google.com>
Date: Wed, 12 Aug 2020 13:06:37 -0700
Subject: [PATCH] [ENOMEM] check for error in visited map during closure
 features.

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

diff --git a/src/hb-ot-layout-gsubgpos.hh b/src/hb-ot-layout-gsubgpos.hh
index 822303868..03a578cec 100644
--- a/src/hb-ot-layout-gsubgpos.hh
+++ b/src/hb-ot-layout-gsubgpos.hh
@@ -89,6 +89,9 @@ struct hb_closure_context_t :
 
   bool is_lookup_done (unsigned int lookup_index)
   {
+    if (done_lookups->in_error ())
+      return true;
+
     /* Have we visited this lookup with the current set of glyphs? */
     return done_lookups->get (lookup_index) == glyphs->get_population ();
   }