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diff -Naur freetype-2.5.5/src/psaux/psobjs.c freetype-2.5.5.new/src/psaux/psobjs.c
--- freetype-2.5.5/src/psaux/psobjs.c 2014-11-25 02:48:48.000000000 -0500
+++ freetype-2.5.5.new/src/psaux/psobjs.c 2015-04-21 18:31:03.106092062 -0400
@@ -182,6 +182,11 @@
return FT_THROW( Invalid_Argument );
}
+ if ( length < 0 ) {
+ FT_ERROR(( "ps_table_add: invalid length\n" ));
+ return PSaux_Err_Invalid_Argument;
+ }
+
/* grow the base block if needed */
if ( table->cursor + length > table->capacity )
{
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