3.18-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
commit 7e6225a1604d0c6aa4140289bf5761868ffc9c83 upstream.
Avoid a case where we would access uninitialized stack data if the AP
advertises HT support without 40MHz channel support.
Fixes: f3000e1b43f1 ("mac80211: fix broken use of VHT/20Mhz with some APs")
Signed-off-by: Jes Sorensen <Jes.Sorensen@xxxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/mac80211/mlme.c | 1 +
1 file changed, 1 insertion(+)
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -174,6 +174,7 @@ ieee80211_determine_chantype(struct ieee
if (!(ht_cap->cap_info &
cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40))) {
ret = IEEE80211_STA_DISABLE_40MHZ;
+ vht_chandef = *chandef;
goto out;
}
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