New stable kernels released

Five new stable kernels were announced by Greg Kroah-Hartman onJuly 21: 4.12.3, 4.11.12, 4.9.39, 4.4.78, and 3.18.62. As usual, they contain important fixes throughout the tree and users shouldupgrade. Note that this is the last release in the 4.11 series, users should move to4.12.x.