merges r24203 from trunk into ruby_1_9_1.

--
* io.c (io_read): should taint the result.   [ruby-dev:38826]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@24290 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 0 deletions

diff --git a/io.c b/io.c
index e38d73acd0..48a6392128 100644
--- a/io.c
+++ b/io.c
@@ -1998,6 +1998,7 @@ io_read(int argc, VALUE *argv, VALUE io)
         return Qnil;
     }
     rb_str_resize(str, n);
+    OBJ_TAINT(str);
 
     return str;
 }