diff mbox

[1/1] wireless: mac80211: Avoid using uninitialized stack data

Message ID 1418315824-23753-2-git-send-email-Jes.Sorensen@redhat.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Jes Sorensen Dec. 11, 2014, 4:37 p.m. UTC 
From: Jes Sorensen <Jes.Sorensen@redhat.com>

Disable VHT in case driver advertises HT support without 40MHz+
channel support, in order to avoid accessing uninitialized stack data.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---
 net/mac80211/mlme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 93af0f1..d7fe2fe 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -173,7 +173,7 @@  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;
+		ret = IEEE80211_STA_DISABLE_40MHZ | IEEE80211_STA_DISABLE_VHT;
 		goto out;
 	}