This is a note to let you know that I've just added the patch titled
mac80211: fix SSID copy on IBSS JOIN
to the 3.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mac80211-fix-ssid-copy-on-ibss-join.patch
and it can be found in the queue-3.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From badecb001a310408d3473b1fc2ed5aefd0bc92a9 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <[email protected]>
Date: Fri, 26 Oct 2012 18:54:25 +0200
Subject: mac80211: fix SSID copy on IBSS JOIN
From: Antonio Quartulli <[email protected]>
commit badecb001a310408d3473b1fc2ed5aefd0bc92a9 upstream.
The 'ssid' field of the cfg80211_ibss_params is a u8 pointer and
its length is likely to be less than IEEE80211_MAX_SSID_LEN most
of the time.
This patch fixes the ssid copy in ieee80211_ibss_join() by using
the SSID length to prevent it from reading beyond the string.
Signed-off-by: Antonio Quartulli <[email protected]>
[rewrapped commit message, small rewording]
Signed-off-by: Johannes Berg <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/mac80211/ibss.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -1074,7 +1074,7 @@ int ieee80211_ibss_join(struct ieee80211
sdata->u.ibss.state = IEEE80211_IBSS_MLME_SEARCH;
sdata->u.ibss.ibss_join_req = jiffies;
- memcpy(sdata->u.ibss.ssid, params->ssid, IEEE80211_MAX_SSID_LEN);
+ memcpy(sdata->u.ibss.ssid, params->ssid, params->ssid_len);
sdata->u.ibss.ssid_len = params->ssid_len;
mutex_unlock(&sdata->u.ibss.mtx);
Patches currently in stable-queue which might be from [email protected] are
queue-3.6/mac80211-fix-ssid-copy-on-ibss-join.patch
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