ref: ac97a29653e2a551064705891bc578c53ecf056d
parent: 2157d8fa6f7e12063ca166476ed2223d24234db7
author: Werner Lemberg <[email protected]>
date: Thu Apr 26 05:04:39 EDT 2018
Another fix for handling invalid format 2 cmaps. Sigh. Reported as https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8003 * src/sfnt/ttcmap.c (tt_cmap2_char_next): Adjust condition to avoid an endless loop.
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,16 @@
+2018-04-26 Werner Lemberg <[email protected]>
+
+ Another fix for handling invalid format 2 cmaps.
+
+ Sigh.
+
+ Reported as
+
+ https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8003
+
+ * src/sfnt/ttcmap.c (tt_cmap2_char_next): Adjust condition to avoid
+ an endless loop.
+
2018-04-24 Ben Wagner <[email protected]>
[base] Avoid undefined behaviour in lcd filtering code (#53727).
--- a/src/sfnt/ttcmap.c
+++ b/src/sfnt/ttcmap.c
@@ -518,7 +518,7 @@
FT_UInt pos, idx;
- if ( char_lo > start + count && charcode <= 0xFF )
+ if ( char_lo >= start + count && charcode <= 0xFF )
{
/* this happens only for a malformed cmap */
charcode = 0x100;