kernel: ksm: use range-walk function to jump over holes in scan_get_next_rmap_item

A resource exhaustion vulnerability was found in the Kernel Same-page Merging KSM subsystem of the Linux kernel. When scanning processes with large sparse virtual memory mappings e.g., 32 TiB with one mapped page, ksmd inefficiently walks every address rather than skipping unmapped holes. This...

[SECURITY] Fedora 31 Update: kata-ksm-throttler-1.11.1-1.fc31.1

This project implements a Kernel Same-page Merging throttling daemon. The Kata Containers runtime creates a virtual machine VM to isolate a set of container workloads. The VM requires a guest kernel and a guest operating system "guest OS" to boot and create containers inside the guest environment...