| From | Greg Kroah-Hartman <> | Subject | [ 015/127] mac80211: fix AP-mode frame matching | Date | Wed, 5 Jun 2013 14:33:02 -0700 |
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3.9-stable review patch. If anyone has any objections, please let me know.
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From: Johannes Berg <johannes.berg@intel.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@w1.fi> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- net/mac80211/rx.c | 3 +++ 1 file changed, 3 insertions(+)
--- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3032,6 +3032,9 @@ static int prepare_for_handlers(struct i * 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))
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