This update provides an update to 5.4 series kernels, currently based on upstream 5.4.2, adding support for new hardware and features, and fixing at least the following security issue:
KVM: x86: fix out-of-bounds write in KVMGETEMULATED_CPUID (CVE-2019-19332)
WireGuard has been updated to 0.0.20191205.
xtables-addons have been updated to 3.7 for kernel 5.4 support.
For other fixes and features in this update, see the referenced changelogs.