From: Johannes Berg <[email protected]>
In AP mode, ignore frames with mis-matched BSSID that aren't
multicast or sent to the correct destination. This fixes
reporting public action frames to userspace multiple times
on multiple virtual AP interfaces.
Cc: [email protected]
Reported-by: Jouni Malinen <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
---
net/mac80211/rx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 6e2c8c5..3194172 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3050,6 +3050,9 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
* and location updates. Note that mac80211
* itself never looks at these frames.
*/
+ if (!multicast &&
+ !ether_addr_equal(sdata->vif.addr, hdr->addr1))
+ return 0;
if (ieee80211_is_public_action(hdr, skb->len))
return 1;
if (!ieee80211_is_beacon(hdr->frame_control))
--
1.8.0