From: Johannes Berg <johannes@sipsolutions.net>
To: linux-wireless@vger.kernel.org
Cc: j@w1.fi, Johannes Berg <johannes.berg@intel.com>
Subject: [PATCH 3.10] mac80211: fix AP-mode frame matching
Date: Mon, 13 May 2013 16:56:13 +0200 [thread overview]
Message-ID: <1368456973-20708-1-git-send-email-johannes@sipsolutions.net> (raw)
From: Johannes Berg <johannes.berg@intel.com>
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: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
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
reply other threads:[~2013-05-13 14:56 UTC|newest]
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