diff -rauN openssh-8.4p1/sandbox-seccomp-filter.c openssh-8.4p1-sandbox-seccomp-pselect6_time64-patch/sandbox-seccomp-filter.c
--- openssh-8.4p1/sandbox-seccomp-filter.c	2020-09-27 09:25:01.000000000 +0200
+++ openssh-8.4p1-sandbox-seccomp-pselect6_time64-patch/sandbox-seccomp-filter.c	2021-02-26 16:57:02.857964436 +0100
@@ -267,6 +267,9 @@
 #ifdef __NR_pselect6
 	SC_ALLOW(__NR_pselect6),
 #endif
+#ifdef __NR_pselect6_time64
+	SC_ALLOW(__NR_pselect6_time64),
+#endif
 #ifdef __NR_read
 	SC_ALLOW(__NR_read),
 #endif