Two stable kernels — and maybe a third

The6.1.12 and5.15.94stable kernel updates have been released, each with the usual set ofimportant fixes. There is also a 5.10.168 release in the works, but it raninto some snags in thereview process; it can be expected shortly.

Another set of updates, containing the mitigations for the just-disclosedcross-threadreturn-address prediction vulnerability (yet another Spectre variantthat affects AMD processors), can be expected soon.