diff options
Diffstat (limited to 'nixos/modules/profiles/hardened.nix')
| -rw-r--r-- | nixos/modules/profiles/hardened.nix | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/nixos/modules/profiles/hardened.nix b/nixos/modules/profiles/hardened.nix index 0a0838431da7..0ab210cc4c39 100644 --- a/nixos/modules/profiles/hardened.nix +++ b/nixos/modules/profiles/hardened.nix @@ -59,4 +59,10 @@ with lib; # the feature at runtime. Attempting to create a user namespace # with unshare will then fail with "no space left on device". boot.kernel.sysctl."user.max_user_namespaces" = mkDefault 0; + + # Raise ASLR entropy for 64bit & 32bit, respectively. + # + # Note: mmap_rnd_compat_bits may not exist on 64bit. + boot.kernel.sysctl."vm.mmap_rnd_bits" = mkDefault 32; + boot.kernel.sysctl."vm.mmap_rnd_compat_bits" = mkDefault 16; } |