netdev - [PATCH v2] mac80211: fix authentication with iwlwifi/mvm

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Message-Id: <20200329225004.115da08b271d.I9712908b102ee30fe76fa72c9ec93c92f52ab689@changeid>
Date:   Sun, 29 Mar 2020 22:50:06 +0200
From:   Johannes Berg <johannes@...solutions.net>
To:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org
Cc:     davem@...emloft.net, j@...fi,
        Johannes Berg <johannes.berg@...el.com>, stable@...r.kernel.org
Subject: [PATCH v2] mac80211: fix authentication with iwlwifi/mvm

From: Johannes Berg <johannes.berg@...el.com>

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@...r.kernel.org
Fixes: ce2e1ca70307 ("mac80211: Check port authorization in the ieee80211_tx_dequeue() case")
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
Dave, can you please apply this directly?

(sorry, I shall remember to use git commit --amend properly)

---
 net/mac80211/tx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index d9cca6dbd870..efe4c1fc68e5 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -3610,7 +3610,8 @@ struct sk_buff *ieee80211_tx_dequeue(struct ieee80211_hw *hw,
 		 * 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) &&
-- 
2.25.1