From b2aaf46eaefbb2835c5146a40ced94632d7b9412 Mon Sep 17 00:00:00 2001
From: Jeffrey Hsu <hsu@FreeBSD.org>
Date: Wed, 25 Dec 2002 10:51:20 +0000
Subject: [PATCH] Range-check the address family parameter passed in to the
 sysctl handler.

Submitted by:	ru
---
 sys/net/rtsock.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c
index 25276d732bd..9d895aeb5dd 100644
--- a/sys/net/rtsock.c
+++ b/sys/net/rtsock.c
@@ -1017,6 +1017,8 @@ sysctl_rtsock(SYSCTL_HANDLER_ARGS)
 	if (namelen != 3)
 		return ((namelen < 3) ? EISDIR : ENOTDIR);
 	af = name[0];
+	if (af > AF_MAX)
+		return (EINVAL);
 	Bzero(&w, sizeof(w));
 	w.w_op = name[1];
 	w.w_arg = name[2];