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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: "John W. Linville" <linville@tuxdriver.com>,
	linux-wireless@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] cfg80211: off by one in ieee80211_bss()
Date: Thu, 24 Jan 2013 06:40:00 +0000	[thread overview]
Message-ID: <20130124064000.GB5611@elgon.mountain> (raw)

We do a:

	sprintf(buf, " Last beacon: %ums ago",
		elapsed_jiffies_msecs(bss->ts));

elapsed_jiffies_msecs() can return a 10 digit number so "buf" needs to
be 31 characters long.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 01592d7..45f1618 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1358,7 +1358,7 @@ ieee80211_bss(struct wiphy *wiphy, struct iw_request_info *info,
 						  &iwe, IW_EV_UINT_LEN);
 	}
 
-	buf = kmalloc(30, GFP_ATOMIC);
+	buf = kmalloc(31, GFP_ATOMIC);
 	if (buf) {
 		memset(&iwe, 0, sizeof(iwe));
 		iwe.cmd = IWEVCUSTOM;

             reply	other threads:[~2013-01-24  6:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-01-24  6:40 Dan Carpenter [this message]
2013-01-24  7:28 ` [patch] cfg80211: off by one in ieee80211_bss() Luciano Coelho
2013-01-24 14:47 ` Johannes Berg

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