Comment 1 for bug 2023025

3.1.4 contains the mount fixes so it would appear to be a bug in those patches. This may indeed be related to https://bugs.launchpad.net/apparmor/+bug/1648245, though it is distinct in that that bug results in compiling the profile but a failure to match, so lets keep the two bugs separate for now.

I replicated this, and find the failure reported to be throw

unsupported mount option value 'abc'

which would indicate a memory bug.