From 4d0de87f799d8032731140e9a5815d4773d91baa Mon Sep 17 00:00:00 2001
From: madaidan <50278627+madaidan@users.noreply.github.com>
Date: Sun, 8 Mar 2020 17:49:49 +0000
Subject: [PATCH] Disable unprivileged userfaultfd use again

---
 etc/sysctl.d/30_security-misc.conf | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/etc/sysctl.d/30_security-misc.conf b/etc/sysctl.d/30_security-misc.conf
index ed0bd49..e83df56 100644
--- a/etc/sysctl.d/30_security-misc.conf
+++ b/etc/sysctl.d/30_security-misc.conf
@@ -134,10 +134,8 @@ kernel.sysrq=132
 ## https://lkml.org/lkml/2019/4/15/890
 dev.tty.ldisc_autoload=0
 
-## Disable for now.
-## https://forums.whonix.org/t/kernel-hardening/7296/406
 ## Restrict the userfaultfd() syscall to root as it can make heap sprays
 ## easier.
 ##
 ## https://duasynt.com/blog/linux-kernel-heap-spray
-#vm.unprivileged_userfaultfd=0
+vm.unprivileged_userfaultfd=0