[mac] Fix buffer size calculation for LWFN font.

* src/base/ftmac.c (read_lwfn): Cast post_size to FT_ULong to prevent confused copy by too large chunk size.
10 years ago · 8a05d250df
parent 3dffe8ef16
commit 8a05d250df
2 changed files with 8 additions and 1 deletions
--- a/7
+++ b/7
@ -1,3 +1,10 @@
+2015-09-27  suzuki toshiya  <mpsuzuki@hiroshima-u.ac.jp>
+
+	[mac] Fix buffer size calculation for LWFN font.
+
+	* src/base/ftmac.c (read_lwfn): Cast post_size to FT_ULong
+	to prevent confused copy by too large chunk size.
+
 2015-09-26  Alexei Podtelezhnikov  <apodtele@gmail.com>

 	* src/smooth/ftgrays.c (PIXEL_MASK): Remove unused macro.
--- a/src/base/ftmac.c
+++ b/src/base/ftmac.c
@ -618,7 +618,7 @@
          total_size += 6; /* code + 4 bytes chunk length */
      }

-      total_size += GetHandleSize( post_data ) - 2;
+      total_size += (FT_ULong)GetHandleSize( post_data ) - 2;
      last_code = code;

      /* detect resource fork overflow */