mac80211: fix authentication with iwlwifi/mvm
authorJohannes Berg <johannes.berg@intel.com>
Sun, 29 Mar 2020 20:50:06 +0000 (22:50 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 2 Apr 2020 13:10:59 +0000 (15:10 +0200)
commit be8c827f50a0bcd56361b31ada11dc0a3c2fd240 upstream.

The original patch didn't copy the ieee80211_is_data() condition
because on most drivers the management frames don't go through
this path. However, they do on iwlwifi/mvm, so we do need to keep
the condition here.

Cc: stable@vger.kernel.org
Fixes: ce2e1ca70307 ("mac80211: Check port authorization in the ieee80211_tx_dequeue() case")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Woody Suwalski <terraluna977@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/mac80211/tx.c

index 93acf43..41da41c 100644 (file)
@@ -3602,7 +3602,8 @@ begin:
                 * Drop unicast frames to unauthorised stations unless they are
                 * EAPOL frames from the local station.
                 */
-               if (unlikely(!ieee80211_vif_is_mesh(&tx.sdata->vif) &&
+               if (unlikely(ieee80211_is_data(hdr->frame_control) &&
+                            !ieee80211_vif_is_mesh(&tx.sdata->vif) &&
                             tx.sdata->vif.type != NL80211_IFTYPE_OCB &&
                             !is_multicast_ether_addr(hdr->addr1) &&
                             !test_sta_flag(tx.sta, WLAN_STA_AUTHORIZED) &&