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@xxxxxxx> --- fs/ext4/namei.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index eadba919f26b..45a5ba558074 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -3525,6 +3525,12 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry, EXT4_I(old_dentry->d_inode)->i_projid))) return -EXDEV; + if ((ext4_encrypted_inode(old_dir) && + !fscrypt_has_encryption_key(old_dir)) || + (ext4_encrypted_inode(new_dir) && + !fscrypt_has_encryption_key(new_dir))) + return -ENOKEY; + retval = dquot_initialize(old.dir); if (retval) return retval; @@ -3725,6 +3731,12 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry, int retval; struct timespec ctime; + if ((ext4_encrypted_inode(old_dir) && + !fscrypt_has_encryption_key(old_dir)) || + (ext4_encrypted_inode(new_dir) && + !fscrypt_has_encryption_key(new_dir))) + return -ENOKEY; + if ((ext4_encrypted_inode(old_dir) || ext4_encrypted_inode(new_dir)) && (old_dir != new_dir) && -- 2.11.0.rc0.7.gbe5a750 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
