Comment 11 for bug 1663991

To my knowledge (which is limited, when it comes to the kernel package with all its extra rules) this falls under:

3. The patch is included in a corresponding upstream stable or extended stable release. For the lifetime of both LTS and non-LTS releases we will be pulling upstream stable updates from the corresponding series. There will be one tracking bug report for each stable update but additional references to existing bugs will be added to the contained patches (on best can do base).

As Joseph Salisbury wrote it had been cc'd to the upstream stable mailinglist already. So you might want to try to find out how their progress is on this.