Yes. The lxc commit[1] states that this issue only affects privileged containers. No CVE has been issued for lxc because they consider privileged containers to be insecure.

In my experience unprivileged containers work for most tasks, but there is breakage in some areas. Usually the issues are simple to resolve, like disabling OOM adjustments in systemd or changing the idmap range in winbind to be within the namespace allotment.

[1] https://github.com/lxc/lxc/commit/6400238d08cdf1ca20d49bafb8...