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-rw-r--r--net/mac80211/rx.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index e12f39a9646..efa6d3689c5 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1111,6 +1111,18 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
if (ieee80211_is_nullfunc(hdr->frame_control) ||
ieee80211_is_qos_nullfunc(hdr->frame_control)) {
I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
+
+ /*
+ * If we receive a 4-addr nullfunc frame from a STA
+ * that was not moved to a 4-addr STA vlan yet, drop
+ * the frame to the monitor interface, to make sure
+ * that hostapd sees it
+ */
+ if (ieee80211_has_a4(hdr->frame_control) &&
+ (rx->sdata->vif.type == NL80211_IFTYPE_AP ||
+ (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+ !rx->sdata->u.vlan.sta)))
+ return RX_DROP_MONITOR;
/*
* Update counter and free packet here to avoid
* counting this as a dropped packed.