Post Syndicated from corbet original https://lwn.net/Articles/940798/

The
6.4.9,
6.1.44,
5.15.125,
5.10.189,
5.4.252,
4.19.290, and
4.14.321
stable kernel updates have all been released; they are dominated by fixes
for the latest round of
speculative-execution vulnerabilities.

Do note the warning attached to each of these releases:

Note, PLEASE TEST this kernel if you are on the 6.4.y tree before
using it in a real workload. This was a quick release due to the
obvious security fixes in it, and as such, it has not had very much
testing “in the wild”. Please let us know of any problems seen.
Also note that the user/kernel api for the new security mitigations
might be changing over time, so do not get used to them being fixed
in stone just yet.