The
5.17.10,
5.15.42,
5.10.118,
5.4.196,
4.19.245,
4.14.281, and
4.9.316
stable kernel updates have all been released; each contains another set of
important fixes.

Update: the 5.17.11 and 5.15.43 updates followed immediately
thereafter with a single MPTCP networking fix.

Source: LWN.net – Another set of stable kernel updates