netdev - [patch] cfg80211: off by one in nl80211_trigger

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <20110729085217.GG3752@shale.localdomain>
Date:	Fri, 29 Jul 2011 11:52:18 +0300
From:	Dan Carpenter <error27@...il.com>
To:	Johannes Berg <johannes@...solutions.net>
Cc:	"John W. Linville" <linville@...driver.com>,
	"David S. Miller" <davem@...emloft.net>,
	"open list:CFG80211 and NL80211" <linux-wireless@...r.kernel.org>,
	"open list:NETWORKING [GENERAL]" <netdev@...r.kernel.org>,
	kernel-janitors@...r.kernel.org
Subject: [patch] cfg80211: off by one in nl80211_trigger_scan()

The test is off by one so we'd read past the end of the
wiphy->bands[] array on the next line.

Signed-off-by: Dan Carpenter <error27@...il.com>

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 28d2aa1..e83e7fe 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3464,7 +3464,7 @@ static int nl80211_trigger_scan(struct sk_buff *skb, struct genl_info *info)
 				    tmp) {
 			enum ieee80211_band band = nla_type(attr);
 
-			if (band < 0 || band > IEEE80211_NUM_BANDS) {
+			if (band < 0 || band >= IEEE80211_NUM_BANDS) {
 				err = -EINVAL;
 				goto out_free;
 			}
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html