illumos/illumos-gate@1c17160ac51c17160ac5https://www.illumos.org/issues/1300
Problem:
We can create invisible file in ZFS.
How to reproduce:
0. Prepare normalization formD ZFS.
# cat cat /etc/release
cat: cat: No such file or directory
OpenIndiana Development oi_151 X86 (powered by illumos)
Copyright 2011 Oracle and/or its affiliates. All rights reserved.
Use is subject to license terms.
Assembled 28 April 2011
# mkfile 100M 100M
# zpool create -O utf8only=on -O normalization=formD test_pool $( pwd )/
100M
# zpool upgrade
This system is currently running ZFS pool version 28.
All pools are formatted using this version.
# zfs get normalization test_pool
NAME PROPERTY VALUE SOURCE
test_pool normalization formD -
# chmod 777 /test_pool
1. Create a NFD file.
$ cd /test_pool/
$ cp /etc/release $( echo "\x75\xcc\x88" )
$ ls -la
total 4
drwxrwxrwx 2 root root 3 2011-07-29 08:53 .
drwxr-xr-x 25 root root 26 2011-07-29 08:53 ..
-r--r--r-- 1 test1 staff 251 2011-07-29 08:53 u?
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Kevin Crowe <kevin.crowe@nexenta.com>
b71204d77d