--- openssh-portable/sandbox-seccomp-filter.c.org	2018-09-14 10:56:00.557388954 +0200
+++ openssh-portable/sandbox-seccomp-filter.c	2018-09-14 11:13:00.051826982 +0200
@@ -166,6 +166,9 @@ static const struct sock_filter preauth_
 #ifdef __NR_exit_group
 	SC_ALLOW(__NR_exit_group),
 #endif
+#ifdef	__NR_futex
+	SC_ALLOW(__NR_futex),
+#endif
 #ifdef __NR_geteuid
 	SC_ALLOW(__NR_geteuid),
 #endif