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authorJohannes Berg <johannes.berg@intel.com>2013-05-13 16:42:40 +0200
committerJohannes Berg <johannes.berg@intel.com>2013-05-16 22:38:07 +0200
commit2b9ccd4e4308272e5aec614b77c5385e7ec2ec90 (patch)
tree6eda5289eb8813f6207ba56676cf12f336659616 /net
parenta838490b493b56d523638c150985a2614d814b01 (diff)
downloadlinux-2b9ccd4e4308272e5aec614b77c5385e7ec2ec90.tar.gz
mac80211: fix AP-mode frame matching
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>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/rx.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index c8447af76ea..8e295262025 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -3036,6 +3036,9 @@ 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))