* src/truetype/ttgxvar.c (tt_hvadvance_adjust): Integer overflow.

Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=50462
2 years ago · e6fda039ad
parent 63ccaef07a
commit e6fda039ad
1 changed files with 2 additions and 1 deletions
--- a/src/truetype/ttgxvar.c
+++ b/src/truetype/ttgxvar.c
@ -42,6 +42,7 @@
 #include <ft2build.h>
 #include <freetype/internal/ftdebug.h>
 #include FT_CONFIG_CONFIG_H
+#include <freetype/internal/ftcalc.h>
 #include <freetype/internal/ftstream.h>
 #include <freetype/internal/sfnt.h>
 #include <freetype/tttags.h>
@ -1207,7 +1208,7 @@
                  delta == 1 ? "" : "s",
                  vertical ? "VVAR" : "HVAR" ));

-      *avalue += delta;
+      *avalue = ADD_INT( *avalue, delta );
    }

  Exit: