[patch] freetype-bdflib-large-encodings.patch

freetype-bdflib-large-encodings.patch (text/plain), 808 bytes, created by Nico R. Wohlgemuth on 2009-02-23 22:32:13 UTC

Index: src/bdf/bdflib.c
===================================================================
--- src/bdf/bdflib.c.orig	2007-07-07 01:14:17.000000000 -0700
+++ src/bdf/bdflib.c	2007-07-07 01:14:29.000000000 -0700
@@ -1578,6 +1578,14 @@
         goto Exit;
       }
 
+      /* Check that the encoding is in the range [0, 65535] because       */
+      /* otherwise p->have (a bitmap with static size) overflows.         */
+      if ( p->glyph_enc >= sizeof(p->have) * 8 )
+      {
+	error = BDF_Err_Invalid_File_Format; /* Not the ideal error code */
+	goto Exit;
+      }
+
       /* Check to see whether this encoding has already been encountered. */
       /* If it has then change it to unencoded so it gets added if        */
       /* indicated.                                                       */