diff --git a/qssb.h b/qssb.h
index 9e471ce..41ac1ee 100644
--- a/qssb.h
+++ b/qssb.h
@@ -149,6 +149,9 @@ static int default_blacklisted_syscals[] = {
 	QSSB_SYS(ptrace),
 	QSSB_SYS(personality),
 	QSSB_SYS(execve),
+	QSSB_SYS(process_vm_readv),
+	QSSB_SYS(process_vm_writev),
+	QSSB_SYS(userfaultfd),
 	-1
 };