Previously: v4.20. Linux kernel v5.0 was released last week! Looking through the changes, here are some security-related things I found interesting: read-only linear mapping, arm64 While x86 has had a read-only linear mapping (or “Low Kernel Mapping” as shown in /sys/kernel/debug/page_tables/kernel under CONFIG_X86_PTDUMP=y) for a while, Ard...