* file.c (file_expand_path): check invalid access.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18905 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2008-08-28 15:03:38 +00:00 · 2008-08-28 15:03:38 +00:00 · 2fcd15d45d
commit 2fcd15d45d
parent b283b1d813
2 changed files with 5 additions and 0 deletions
--- a/4
+++ b/4
@ -1,3 +1,7 @@
+Fri Aug 29 00:03:13 2008  Yusuke Endoh  <mame@tsg.ne.jp>
+
+	* file.c (file_expand_path): check invalid access.
+
 Thu Aug 28 23:55:50 2008  Shugo Maeda  <shugo@ruby-lang.org>

 	* strftime.c (rb_strftime): Time.mktime(2000).strftime("%-S") should
--- a/file.c
+++ b/file.c
@ -2734,6 +2734,7 @@ file_expand_path(VALUE fname, VALUE dname, int abs_mode, VALUE result)
 	*p = '/';
    }

+    BUFCHECK(bdiff + 1 >= buflen);
    p[1] = 0;
    root = skipprefix(buf);