From 4d107649475a9b0729223a5a1d5f71dde7d8c8f0 Mon Sep 17 00:00:00 2001 From: Jes Sorensen Date: Wed, 10 Dec 2014 14:14:07 -0500 Subject: [PATCH] mac80211: avoid using uninitialized stack data Avoid a case where we would access uninitialized stack data if the AP advertises HT support without 40MHz channel support. Cc: stable@vger.kernel.org Fixes: 54500c1bfaeb ("mac80211: fix broken use of VHT/20Mhz with some APs") Signed-off-by: Jes Sorensen Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 75a9bf50207ec..2c36c4765f47f 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -174,6 +174,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, 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; } -- 2.39.5