CVE-2014-5045 was assigned for this issue On 07/23/2014 10:06 AM, Ian Kent wrote: > On Mon, 2014-07-21 at 12:30 +0400, Vasily Averin wrote: >> Currently umount on symlink blocks following umount: >> >> /vz is separate mount >> >> # ls /vz/ -al | grep test >> drwxr-xr-x. 2 root root 4096 Jul 19 01:14 testdir >> lrwxrwxrwx. 1 root root 11 Jul 19 01:16 testlink -> /vz/testdir >> # umount -l /vz/testlink >> umount: /vz/testlink: not mounted (expected) >> >> # lsof /vz >> # umount /vz >> umount: /vz: device is busy. (unexpected) >> >> In this case mountpoint_last() gets an extra refcount on path->mnt >> >> Signed-off-by: Vasily Averin <v...@openvz.org> > > Acked-by: Ian Kent <ra...@themaw.net>
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