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-rw-r--r--net/mac80211/rx.c7
-rw-r--r--net/mac80211/tx.c6
2 files changed, 11 insertions, 2 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9a1eb70..2e8a902 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1624,8 +1624,13 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
if (mmie_keyidx < NUM_DEFAULT_KEYS ||
mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
return RX_DROP_MONITOR; /* unexpected BIP keyidx */
- if (rx->sta)
+ if (rx->sta) {
+ if (ieee80211_is_group_privacy_action(skb) &&
+ test_sta_flag(rx->sta, WLAN_STA_MFP))
+ return RX_DROP_MONITOR;
+
rx->key = rcu_dereference(rx->sta->gtk[mmie_keyidx]);
+ }
if (!rx->key)
rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]);
} else if (!ieee80211_has_protected(fc)) {
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 44ec605..fa8d38e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -593,6 +593,9 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
else if (tx->sta &&
(key = rcu_dereference(tx->sta->ptk[tx->sta->ptk_idx])))
tx->key = key;
+ else if (ieee80211_is_group_privacy_action(tx->skb) &&
+ (key = rcu_dereference(tx->sdata->default_multicast_key)))
+ tx->key = key;
else if (ieee80211_is_mgmt(hdr->frame_control) &&
is_multicast_ether_addr(hdr->addr1) &&
ieee80211_is_robust_mgmt_frame(tx->skb) &&
@@ -625,7 +628,8 @@ ieee80211_tx_h_select_key(struct ieee80211_tx_data *tx)
case WLAN_CIPHER_SUITE_GCMP_256:
if (!ieee80211_is_data_present(hdr->frame_control) &&
!ieee80211_use_mfp(hdr->frame_control, tx->sta,
- tx->skb))
+ tx->skb) &&
+ !ieee80211_is_group_privacy_action(tx->skb))
tx->key = NULL;
else
skip_hw = (tx->key->conf.flags &
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