shithub: freetype+ttf2subf

Download patch

ref: 6b660f12151c7f333f8be6d84df916db210d3742
parent: 83fc524dfc93bfabee681ea2484b93ad1f66ca15
author: Werner Lemberg <[email protected]>
date: Tue Oct 2 12:48:59 EDT 2018 

[psaux] Fix numeric overflow.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10768

* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>
[CFF_CONFIG_OPTION_OLD_ENGINE]: Use NEG_INT.

git/fs: mount .git/fs: mount/attach disallowed 
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,16 @@
 2018-10-02  Werner Lemberg  <[email protected]>
 
+	[psaux] Fix numeric overflow.
+
+	Reported as
+
+	  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10768
+
+	* src/psaux/cffdecode.c (cff_decoder_parse_charstrings) <cff_op_roll>
+	[CFF_CONFIG_OPTION_OLD_ENGINE]: Use NEG_INT.
+
+2018-10-02  Werner Lemberg  <[email protected]>
+
 	[pshinter] Handle numeric overflow.
 
 	Reported as
--- a/src/psaux/cffdecode.c
+++ b/src/psaux/cffdecode.c
@@ -1839,7 +1839,7 @@
               /* before C99 it is implementation-defined whether    */
               /* the result of `%' is negative if the first operand */
               /* is negative                                        */
-              idx = -( ( -idx ) % count );
+              idx = -( NEG_INT( idx ) % count );
               while ( idx < 0 )
               {
                 FT_Fixed  tmp = args[0];