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Message-Id: <1370364959-9475-18-git-send-email-kamal@canonical.com>
Date: Tue, 4 Jun 2013 09:55:01 -0700
From: Kamal Mostafa <kamal@...onical.com>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
kernel-team@...ts.ubuntu.com
Cc: Johannes Berg <johannes.berg@...el.com>,
Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 17/75] mac80211: fix AP-mode frame matching
3.8.13.2 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Johannes Berg <johannes.berg@...el.com>
commit 2b9ccd4e4308272e5aec614b77c5385e7ec2ec90 upstream.
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.
Reported-by: Jouni Malinen <j@...fi>
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
net/mac80211/rx.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 580704e..bed1b09 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2950,6 +2950,9 @@ 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))
--
1.8.1.2
--
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