From 3027a8e799b20fc922496a12f8ad2f9f36a8a696 Mon Sep 17 00:00:00 2001
From: Avraham Stern <avraham.stern@intel.com>
Date: Mon, 19 Feb 2018 14:48:38 +0200
Subject: [PATCH] cfg80211: clear wep keys after disconnection
Git-commit: 3027a8e799b20fc922496a12f8ad2f9f36a8a696
Patch-mainline: v4.16-rc3
References: bsc#1051510

When a low level driver calls cfg80211_disconnected(), wep keys are
not cleared. As a result, following connection requests will fail
since cfg80211 internal state shows a connection is still in progress.

Fix this by clearing the wep keys when disconnecting.

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 net/wireless/sme.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -987,6 +987,8 @@ void __cfg80211_disconnected(struct net_
 	wdev->current_bss = NULL;
 	wdev->ssid_len = 0;
 	wdev->conn_owner_nlportid = 0;
+	kzfree(wdev->connect_keys);
+	wdev->connect_keys = NULL;
 
 	nl80211_send_disconnected(rdev, dev, reason, ie, ie_len, from_ap);