shithub: freetype+ttf2subf

Download patch

ref: 91fc3bd7c9ce3dadc5e62110f93328f8b4c8b781
parent: 180185109b0ffedb5ba50a9f2ac9817f0d2c3694
author: Werner Lemberg <[email protected]>
date: Thu Dec 29 16:34:46 EST 2016 

* src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis data.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=348

git/fs: mount .git/fs: mount/attach disallowed 
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2016-12-29  Werner Lemberg  <[email protected]>
 
+	* src/truetype/ttgxvar.c (TT_Get_MM_Var): Check axis data.
+
+	Reported as
+
+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=348
+
+2016-12-29  Werner Lemberg  <[email protected]>
+
 	[truetype] Tracing fixes.
 
 	* src/truetype/ttgxvar.c (tt_hadvance_adjust): Emit correct
--- a/src/truetype/ttgxvar.c
+++ b/src/truetype/ttgxvar.c
@@ -1435,6 +1435,17 @@
         a->name[3] = (FT_String)( ( a->tag       ) & 0xFF );
         a->name[4] = '\0';
 
+        if ( a->minimum > a->def ||
+             a->def > a->maximum )
+        {
+          FT_TRACE2(( "TT_Get_MM_Var:"
+                      " invalid \"%s\" axis record; disabling\n",
+                      a->name ));
+
+          a->minimum = a->def;
+          a->maximum = a->def;
+        }
+
         FT_TRACE5(( "  \"%s\": minimum=%.5f, default=%.5f, maximum=%.5f\n",
                     a->name,
                     a->minimum / 65536.0,