From 42beb2047176e0ccfc32afc189e8501ae38a88b8 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 20 Nov 2013 11:28:27 +0100 Subject: [PATCH] mac80211: don't attempt to reorder multicast frames commit 051a41fa4ee14f5c39668f0980973b9a195de560 upstream. Multicast frames can't be transmitted as part of an aggregation session (such a session couldn't even be set up) so don't try to reorder them. Trying to do so would cause the reorder to stop working correctly since multicast QoS frames (as transmitted by the Aruba APs this was found with) would cause sequence number confusion in the buffer. Reported-by: Blaise Gassend Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- net/mac80211/rx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index ec09bcb..fae73b0 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -864,7 +864,8 @@ static void ieee80211_rx_reorder_ampdu(struct ieee80211_rx_data *rx, u16 sc; u8 tid, ack_policy; - if (!ieee80211_is_data_qos(hdr->frame_control)) + if (!ieee80211_is_data_qos(hdr->frame_control) || + is_multicast_ether_addr(hdr->addr1)) goto dont_reorder; /* -- 2.7.4