Comment # 1 on bug 1042082 from John Johansen

Unfortunately upstream 4.13 will not be sufficient. The goal now is to get the
remaining changes into 4.14.

If backporting to an older kernel I would use the
git://kernel.ubuntu.com/jj/linux-apparmor-backports tree.

A new series of branches will be added based on the 4.13 version of apparmor.
It will provide a small patch series (2 base patches - 1 securityfs, 1 apparmor
and then any necessary backport patches for the target kernel version).

The final version of the 4.13 backport branch will not be available until at
earliest the close of the 4.13 merge window. But a early version could be made
available next week.