shyouhei	2007-09-19 11:13:21 +0900 (Wed, 19 Sep 2007)

  New Revision: 13468

  Modified files:
    branches/ruby_1_8_6/ChangeLog
    branches/ruby_1_8_6/bignum.c
    branches/ruby_1_8_6/version.h

  Log:
    * bignum.c (bigtrunc): RBIGNUM(x)->len may be zero.  out of bound
      access.  [ruby-dev:31404]


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8_6/ChangeLog?r1=13468&r2=13467
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8_6/version.h?r1=13468&r2=13467
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8_6/bignum.c?r1=13468&r2=13467

Index: ruby_1_8_6/ChangeLog
===================================================================
--- ruby_1_8_6/ChangeLog	(revision 13467)
+++ ruby_1_8_6/ChangeLog	(revision 13468)
@@ -1,3 +1,8 @@
+Wed Sep 19 11:13:07 2007  Yukihiro Matsumoto  <matz@r...>
+
+	* bignum.c (bigtrunc): RBIGNUM(x)->len may be zero.  out of bound
+	  access.  [ruby-dev:31404]
+
 Mon Sep 17 05:24:13 2007  Sylvain Joyeux <sylvain.joyeux@m...>
 
 	* ext/thread/thread.c (lock_mutex): should take care of threads
Index: ruby_1_8_6/version.h
===================================================================
--- ruby_1_8_6/version.h	(revision 13467)
+++ ruby_1_8_6/version.h	(revision 13468)
@@ -1,15 +1,15 @@
 #define RUBY_VERSION "1.8.6"
-#define RUBY_RELEASE_DATE "2007-09-17"
+#define RUBY_RELEASE_DATE "2007-09-19"
 #define RUBY_VERSION_CODE 186
-#define RUBY_RELEASE_CODE 20070917
-#define RUBY_PATCHLEVEL 106
+#define RUBY_RELEASE_CODE 20070919
+#define RUBY_PATCHLEVEL 107
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8
 #define RUBY_VERSION_TEENY 6
 #define RUBY_RELEASE_YEAR 2007
 #define RUBY_RELEASE_MONTH 9
-#define RUBY_RELEASE_DAY 17
+#define RUBY_RELEASE_DAY 19
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];
Index: ruby_1_8_6/bignum.c
===================================================================
--- ruby_1_8_6/bignum.c	(revision 13467)
+++ ruby_1_8_6/bignum.c	(revision 13468)
@@ -103,6 +103,7 @@
     long len = RBIGNUM(x)->len;
     BDIGIT *ds = BDIGITS(x);
 
+    if (len == 0) return x;
     while (--len && !ds[len]);
     RBIGNUM(x)->len = ++len;
     return x;

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