linux-kernel - [PATCH 4.19 83/93] mac80211: Correctly set noencrypt for PAE frames

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Message-Id: <20190904175310.288286492@linuxfoundation.org>
Date:   Wed,  4 Sep 2019 19:54:25 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Denis Kenzior <denkenz@...il.com>,
        Johannes Berg <johannes.berg@...el.com>
Subject: [PATCH 4.19 83/93] mac80211: Correctly set noencrypt for PAE frames

From: Denis Kenzior <denkenz@...il.com>

commit f8b43c5cf4b62a19f2210a0f5367b84e1eff1ab9 upstream.

The noencrypt flag was intended to be set if the "frame was received
unencrypted" according to include/uapi/linux/nl80211.h.  However, the
current behavior is opposite of this.

Cc: stable@...r.kernel.org
Fixes: 018f6fbf540d ("mac80211: Send control port frames over nl80211")
Signed-off-by: Denis Kenzior <denkenz@...il.com>
Link: https://lore.kernel.org/r/20190827224120.14545-3-denkenz@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 net/mac80211/rx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2372,7 +2372,7 @@ static void ieee80211_deliver_skb_to_loc
 		      skb->protocol == cpu_to_be16(ETH_P_PREAUTH)) &&
 		     sdata->control_port_over_nl80211)) {
 		struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
-		bool noencrypt = status->flag & RX_FLAG_DECRYPTED;
+		bool noencrypt = !(status->flag & RX_FLAG_DECRYPTED);
 
 		cfg80211_rx_control_port(dev, skb, noencrypt);
 		dev_kfree_skb(skb);