commit 94f6d57a4c4264e59493ccdf9b8cef92600c0c25
author Ewald Hew <ewaldhew@gmail.com> Mon Oct 16 11:48:31 2017 +0800
committer Ewald Hew <ewaldhew@gmail.com> Mon Oct 16 19:17:30 2017 +0800
tree 4dde81b10a8974a0c4ad00bf6a4129a76e057343
parent ccb0f7998da38aeb5cb353a6f9656f9846a397f4

[cff] Fix segfault on missing `psaux' (#52218)

* src/cff/cffload.c (cff_done_blend): Add a check for possible nullptr.

* modules.cfg: Update dependency list.

ChangeLog

diff --git a/ChangeLog b/ChangeLog
index b7db5d9..160f445 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2017-10-12  Ewald Hew  <ewaldhew@gmail.com>
+
+	[cff] Fix segfault on missing `psaux' (#52218)
+
+	* src/cff/cffload.c (cff_done_blend): Add a check for possible nullptr.
+
+	* modules.cfg: Update dependency list.
+
 2017-10-15  Alexei Podtelezhnikov  <apodtele@gmail.com>
 
 	[base, cff] Fix MSVC warnings.

modules.cfg

diff --git a/modules.cfg b/modules.cfg
index 517111e..56a2340 100644
--- a/modules.cfg
+++ b/modules.cfg
@@ -42,7 +42,7 @@
 
 # CFF/OpenType font driver.
 #
-# This driver needs the `sfnt', `pshinter', and `psnames' modules.
+# This driver needs the `sfnt', `psaux', `pshinter', and `psnames' modules.
 FONT_MODULES += cff
 
 # Type 1 CID-keyed font driver.

src/cff/cffload.c

diff --git a/src/cff/cffload.c b/src/cff/cffload.c
index 069e904..e8479d4 100644
--- a/src/cff/cffload.c
+++ b/src/cff/cffload.c
@@ -1595,7 +1595,8 @@
     FT_Service_MultiMasters  mm = (FT_Service_MultiMasters)face->mm;
 
 
-    mm->done_blend( FT_FACE( face ) );
+    if (mm)
+      mm->done_blend( FT_FACE( face ) );
   }
 
 #endif /* TT_CONFIG_OPTION_GX_VAR_SUPPORT */