1 files changed, 12 insertions, 0 deletions

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 599510a3355e..ba158f61aab4 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -66,6 +66,7 @@
 #include <linux/kexec.h>
 #include <linux/bpf.h>
 #include <linux/mount.h>
+#include <linux/userfaultfd_k.h>
 
 #include "../lib/kstrtox.h"
 
@@ -1720,6 +1721,17 @@ static struct ctl_table vm_table[] = {
                 .extra2         = (void *)&mmap_rnd_compat_bits_max,
         },
 #endif
+#ifdef CONFIG_USERFAULTFD
+        {
+                .procname       = "unprivileged_userfaultfd",
+                .data           = &sysctl_unprivileged_userfaultfd,
+                .maxlen         = sizeof(sysctl_unprivileged_userfaultfd),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &zero,
+                .extra2         = &one,
+        },
+#endif
         { }
 };