--- a/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
+++ a/sandbox/linux/seccomp-bpf-helpers/syscall_sets.cc
@@ -370,6 +370,7 @@
switch (sysno) {
case __NR_exit:
case __NR_exit_group:
+ case __NR_membarrier:
case __NR_wait4:
case __NR_waitid:
#if defined(__i386__)