ext4: don't allow encrypted operations without keys
BugLink: http://bugs.launchpad.net/bugs/1724783 commit 173b8439 upstream. While we allow deletes without the key, the following should not be permitted: # cd /vdc/encrypted-dir-without-key # ls -l total 4 -rw-r--r-- 1 root root 0 Dec 27 22:35 6,LKNRJsp209FbXoSvJWzB -rw-r--r-- 1 root root 286 Dec 27 22:35 uRJ5vJh9gE7vcomYMqTAyD # mv uRJ5vJh9gE7vcomYMqTAyD 6,LKNRJsp209FbXoSvJWzB Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
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