let pfattach() to also initialize pf_default_rule_new to avoid

div-by-zero in pf_purge()

Reported-by: syzbot+e720e3bab51366d7b667@syzkaller.appspotmail.com
OK deraadt@

diff --git a/sys/net/pf_ioctl.c b/sys/net/pf_ioctl.c
index fa2a5dc..124cf7e 100644 (file)
--- a/sys/net/pf_ioctl.c
+++ b/sys/net/pf_ioctl.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: pf_ioctl.c,v 1.371 2022/01/24 22:49:48 bluhm Exp $ */
+/*     $OpenBSD: pf_ioctl.c,v 1.372 2022/02/09 11:42:58 sashan Exp $ */
 
 /*
  * Copyright (c) 2001 Daniel Hartmeier
@@ -250,6 +250,8 @@ pfattach(int num)
 
        /* XXX do our best to avoid a conflict */
        pf_status.hostid = arc4random();
+
+       pf_default_rule_new = pf_default_rule;
 }
 
 int