From 075c06a5e3023e3159fd4ed422a7304e835e3ce2 Mon Sep 17 00:00:00 2001
From: natano <natano@openbsd.org>
Date: Tue, 2 May 2017 16:46:00 +0000
Subject: [PATCH] Stricter pledge for bpf. ok deraadt

---
 sys/kern/kern_pledge.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sys/kern/kern_pledge.c b/sys/kern/kern_pledge.c
index 66a4975552b..20b1e70401d 100644
--- a/sys/kern/kern_pledge.c
+++ b/sys/kern/kern_pledge.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: kern_pledge.c,v 1.207 2017/04/29 08:02:56 mpi Exp $	*/
+/*	$OpenBSD: kern_pledge.c,v 1.208 2017/05/02 16:46:00 natano Exp $	*/
 
 /*
  * Copyright (c) 2015 Nicholas Marriott <nicm@openbsd.org>
@@ -1143,7 +1143,9 @@ pledge_ioctl(struct proc *p, long com, struct file *fp)
 		switch (com) {
 		case BIOCGSTATS:	/* bpf: tcpdump privsep on ^C */
 			if (fp->f_type == DTYPE_VNODE &&
-			    fp->f_ops->fo_ioctl == vn_ioctl)
+			    fp->f_ops->fo_ioctl == vn_ioctl &&
+			    vp->v_type == VCHR &&
+			    cdevsw[major(vp->v_rdev)].d_open == bpfopen)
 				return (0);
 			break;
 		}
-- 
2.20.1