* src/base/ftoutln.c (FT_Outline_Translate): Fix integer overflow.

Reported as https://bugs.chromium.org/p/chromium/issues/detail?id=772775
7 years ago · 6498551921
parent b7e43f7d7d
commit 6498551921
2 changed files with 10 additions and 2 deletions
--- a/8
+++ b/8
@ -1,3 +1,11 @@
+2017-10-09  Werner Lemberg  <wl@gnu.org>
+
+	* src/base/ftoutln.c (FT_Outline_Translate): Fix integer overflow.
+
+	Reported as
+
+	  https://bugs.chromium.org/p/chromium/issues/detail?id=772775
+
 2017-10-08  Werner Lemberg  <wl@gnu.org>

 	* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Integer overflows.
--- a/src/base/ftoutln.c
+++ b/src/base/ftoutln.c
@ -540,8 +540,8 @@

    for ( n = 0; n < outline->n_points; n++ )
    {
-      vec->x += xOffset;
-      vec->y += yOffset;
+      vec->x = ADD_LONG( vec->x, xOffset );
+      vec->y = ADD_LONG( vec->y, yOffset );
      vec++;
    }
  }