Re: [syzbot] [wireless?] general protection fault in cfg80211_mlme_deauth

[Edward Adam Davis]

#syz test

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index cf998500a965..b983faa5bbf1 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -269,6 +269,16 @@ void cfg80211_conn_work(struct work_struct *work)
 			memcpy(bssid_buf, wdev->conn->params.bssid, ETH_ALEN);
 			bssid = bssid_buf;
 		}
+
+		if (wdev->conn->state == CFG80211_CONN_ASSOC_FAILED) {
+			printk("bssid: %p, pbssid: %p, dis bssid: %p, connected: %d, %s\n",
+				wdev->conn->bssid, wdev->conn->params.bssid,
+				wdev->disconnect_bssid, wdev->connected, __func__);
+			BUG_ON(!wdev->conn->bssid ||
+			       !wdev->conn->params.bssid ||
+			       !wdev->disconnect_bssid);
+		}
+
 		treason = NL80211_TIMEOUT_UNSPECIFIED;
 		if (cfg80211_conn_do_work(wdev, &treason)) {
 			struct cfg80211_connect_resp_params cr;
@@ -411,6 +421,8 @@ bool cfg80211_sme_rx_assoc_resp(struct wireless_dev *wdev, u16 status)
 		return true;
 	}
 
+	printk("bssid: %p, pbssid: %p, dis bssid: %p, %s\n",
+		wdev->conn->bssid, wdev->conn->params.bssid, wdev->disconnect_bssid, __func__);
 	wdev->conn->state = CFG80211_CONN_ASSOC_FAILED;
 	schedule_work(&rdev->conn_work);
 	return false;