Apparmor profiles were not enabled before the 1:5.4.5-0ubuntu0.17.10.1 SRU.
The SRU accidentally enabled them and broke a flurry of use cases. That was a very bad regression.
The 1:5.4.5-0ubuntu0.17.10.4 SRU disabled them again. Regression fixed, hence the status.
We will work towards enabling apparmor profiles in a controlled manner.
Copying here comment #51 from bug #1751005:
Apparmor profiles were not enabled before the 1:5.4.5- 0ubuntu0. 17.10.1 SRU. 0ubuntu0. 17.10.4 SRU disabled them again. Regression fixed, hence the status.
The SRU accidentally enabled them and broke a flurry of use cases. That was a very bad regression.
The 1:5.4.5-
We will work towards enabling apparmor profiles in a controlled manner.