Two rounds of stable kernels released

Greg Kroah-Hartman has released two batches of stable kernels. The firstset has fixes in various parts of the tree, while the second batch has asingle fix for a problemwith the page-table-entry inversion that is done as a mitigation for the L1TF speculative-executionvulnerability. The first batch includes: 4.18.2, 4.17.16, 4.14.64, 4.9.121, 4.4.149, and 3.18.119. The second batch is: 4.18.3, 4.17.17, 4.14.65, 4.9.122, and 4.4.150. Users should upgrade, presumably tosomething in the second batch unless they are running the 3.18 series.