* src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#50573).

The problematic font that exceeds the old limit is Lato-Regular,
version 2.007, containing bytecode generated by a buggy version of
ttfautohint.

ChangeLog

@@ -1,3 +1,11 @@
+2017-03-18  Werner Lemberg  <wl@gnu.org>
+
+	* src/truetype/ttinterp.c (TT_RunIns): Adjust loop counter (#50573).
+
+	The problematic font that exceeds the old limit is Lato-Regular,
+	version 2.007, containing bytecode generated by a buggy version of
+	ttfautohint.
+
 2017-03-18  Werner Lemberg  <wl@gnu.org>
 
 	[truetype] Another limitation for bytecode loop count maximum.

src/truetype/ttinterp.c

@@ -7626,7 +7626,7 @@
                                           exc->cvtSize / 10 );
     else
       exc->loopcall_counter_max = FT_MAX( 100,
-                                          5 * exc->cvtSize );
+                                          10 * exc->cvtSize );
 
     /* as a protection against an unreasonable number of CVT entries  */
     /* we assume at most 100 control values per glyph for the counter */