[freetype2] master c220d8b: [truetype] Better protection against malformed GX data (#46166).

[Werner LEMBERG]

branch: master
commit c220d8b498a66e241872ea4b39a8902177e5fac3
Author: Werner Lemberg <address@hidden>
Commit: Werner Lemberg <address@hidden>

    [truetype] Better protection against malformed GX data (#46166).
    
    * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Correctly
    handle empty `localpoints' array.
---
 ChangeLog              |    7 +++++++
 src/truetype/ttgxvar.c |    3 +++
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 4cc2e53..20e8b47 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2015-10-10  Werner Lemberg  <address@hidden>
 
+       [truetype] Better protection against malformed GX data (#46166).
+
+       * src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Correctly
+       handle empty `localpoints' array.
+
+2015-10-10  Werner Lemberg  <address@hidden>
+
        * src/pcf/pcfread.c (pcf_read_TOC): Check stream size (#46162).
 
 2015-10-09  Werner Lemberg  <address@hidden>
diff --git a/src/truetype/ttgxvar.c b/src/truetype/ttgxvar.c
index dd9e250..e838b87 100644
--- a/src/truetype/ttgxvar.c
+++ b/src/truetype/ttgxvar.c
@@ -1950,6 +1950,9 @@
 #endif
       }
 
+      else if ( localpoints == NULL )
+        ; /* failure, ignore it */
+
       else
       {
 #ifdef FT_DEBUG_LEVEL_TRACE