[PATCH] mac80211: fix VHT MU-MIMO frame processing

[PATCH] mac80211: fix VHT MU-MIMO frame processing

[Emmanuel Grumbach]

From: Sara Sharon <sara.sharon@intel.com>

The source and destintation addresses in the memcpy arguments
are flipped. Fix that.

Fixes: 23a1f8d44c0b("mac80211: process and save VHT MU-MIMO group frame")
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 net/mac80211/vht.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 204cf9a..341d192 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -459,10 +459,12 @@ void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
 		    bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN))
 		return;
 
-	memcpy(mgmt->u.action.u.vht_group_notif.membership,
-	       bss_conf->mu_group.membership, WLAN_MEMBERSHIP_LEN);
-	memcpy(mgmt->u.action.u.vht_group_notif.position,
-	       bss_conf->mu_group.position, WLAN_USER_POSITION_LEN);
+	memcpy(bss_conf->mu_group.membership,
+	       mgmt->u.action.u.vht_group_notif.membership,
+	       WLAN_MEMBERSHIP_LEN);
+	memcpy(bss_conf->mu_group.position,
+	       mgmt->u.action.u.vht_group_notif.position,
+	       WLAN_USER_POSITION_LEN);
 
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
 }
-- 
2.5.0

Re: [PATCH] mac80211: fix VHT MU-MIMO frame processing

[Johannes Berg]

On Wed, 2016-02-03 at 21:52 +0200, Emmanuel Grumbach wrote:
> From: Sara Sharon <sara.sharon@intel.com>
> 
> The source and destintation addresses in the memcpy arguments
> are flipped. Fix that.
> 
Applied.

johannes