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-rw-r--r--kernel/sysctl.c12
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
{ }
};