Tamara Schmitz b80c3284d5 nixos/hardened: update hardened profile to new recommendations ... Borrowing from here to match hardened profile with more recent kernels: * https://madaidans-insecurities.github.io/guides/linux-hardening.html?#boot-parameters * https://github.com/a13xp0p0v/kernel-hardening-checker/ Removed "slub_debug" as that option disables kernel memory address hashing. You also see a big warning about this in the dmesg: "This system shows unhashed kernel memory addresses via the console, logs, and other interfaces." "init_on_alloc=1" and "init_on_free=1" zeroes all SLAB and SLUB allocations. Introduced in 6471384af2a6530696fc0203bafe4de41a23c9ef. Also the default for the Android Google kernel btw. It is on by default through the KConfig. "slab_nomerge" prevents the merging of slab/slub caches. These are effectively slab/slub pools. "LEGACY_VSYSCALL_NONE" disables the older vsyscall mechanic that relies on static address. It got superseeded by vdsos a decade ago. Read some LWN.net to learn more ;) "debugfs=off" I'm sure there are some few userspace programs that rely on debugfs, but they shouldn't. Most other things mentioned on the blog where already the default on a running machine or may not be applicable. Most other Kconfigs changes come from the kernel hardening checker and were added, when they were not applied to the kernel already. Unsure about CONFIG_STATIC_USERMODEHELPER. Would need testing.		2024-01-27 20:43:58 +00:00
..
keys
all-hardware.nix
base.nix
clone-config.nix
demo.nix
docker-container.nix
graphical.nix
hardened.nix	nixos/hardened: update hardened profile to new recommendations	2024-01-27 20:43:58 +00:00
headless.nix
image-based-appliance.nix
installation-device.nix	nixos/installation-device: enable polkit	2024-01-23 16:10:31 +01:00
macos-builder.nix
minimal.nix	nixos/stub-ld: init module	2023-12-11 05:47:23 -05:00
perlless.nix	nixos/profiles/perlless: init	2024-01-22 00:54:13 +01:00
qemu-guest.nix