-stable review patch. If anyone has any objections, please let us know.
------------------
From: John W. Linville <[EMAIL PROTECTED]>
patch b331615722779b078822988843ddffd4eaec9f83 in mainline.
In STA mode, the AP will echo our traffic. This includes multicast
traffic.
Receiving these frames confuses some protocols and applications,
notably IPv6 Duplicate Address Detection.
Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
Signed-off-by: Johannes Berg <[EMAIL PROTECTED]>
Acked-by: Michael Wu <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
net/mac80211/ieee80211.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -2836,9 +2836,10 @@ ieee80211_rx_h_data(struct ieee80211_txr
memcpy(dst, hdr->addr1, ETH_ALEN);
memcpy(src, hdr->addr3, ETH_ALEN);
- if (sdata->type != IEEE80211_IF_TYPE_STA) {
+ if (sdata->type != IEEE80211_IF_TYPE_STA ||
+ (is_multicast_ether_addr(dst) &&
+ !compare_ether_addr(src, dev->dev_addr)))
return TXRX_DROP;
- }
break;
case 0:
/* DA SA BSSID */
--
-
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