From: stsp <stsp@openbsd.org>
Date: Tue, 12 Dec 2017 13:58:19 +0000 (+0000)
Subject: Don't dereference IEEE80211_CHAN_ANYC pointer in ieee80211_node_checkrssi().
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=49a206bde5df359bedba72463ee921a954120ece;p=openbsd

Don't dereference IEEE80211_CHAN_ANYC pointer in ieee80211_node_checkrssi().

Problem reported by Gregoire Jadi on bugs@
---

diff --git a/sys/net80211/ieee80211_node.c b/sys/net80211/ieee80211_node.c
index 57641fac24a..4951e37790a 100644
--- a/sys/net80211/ieee80211_node.c
+++ b/sys/net80211/ieee80211_node.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: ieee80211_node.c,v 1.124 2017/12/12 13:38:10 phessler Exp $	*/
+/*	$OpenBSD: ieee80211_node.c,v 1.125 2017/12/12 13:58:19 stsp Exp $	*/
 /*	$NetBSD: ieee80211_node.c,v 1.14 2004/05/09 09:18:47 dyoung Exp $	*/
 
 /*-
@@ -995,6 +995,9 @@ ieee80211_node_checkrssi(struct ieee80211com *ic,
 {
 	uint8_t thres;
 
+	if (ni->ni_chan == IEEE80211_CHAN_ANYC)
+		return 0;
+
 	if (ic->ic_max_rssi) {
 		thres = (IEEE80211_IS_CHAN_2GHZ(ni->ni_chan)) ?
 		    IEEE80211_RSSI_THRES_RATIO_2GHZ :