This patch prevents page fault in __cfg80211_connect_result()[1]
when connecting a virt_wifi device, while ensuring that virt_wifi
can connect properly.
Note: After applying this patch, NetworkManager should be configured
to use iwd as the Wi-Fi backend. Otherwise, NetworkManager may
quickly disconnect from the virtio_wifi device after connect for
unknown reasons.
[1] https://lore.kernel.org/linux-wireless/20250909063213.1055024-1-guan_yufei@163.com/
Closes: https://lore.kernel.org/linux-wireless/20250909063213.1055024-1-guan_yufei@163.com/
Signed-off-by: James Guan <guan_yufei@163.com>
---
drivers/net/wireless/virtual/virt_wifi.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/virtual/virt_wifi.c b/drivers/net/wireless/virtual/virt_wifi.c
index 1fffeff2190c..4eae89376feb 100644
--- a/drivers/net/wireless/virtual/virt_wifi.c
+++ b/drivers/net/wireless/virtual/virt_wifi.c
@@ -277,7 +277,9 @@ static void virt_wifi_connect_complete(struct work_struct *work)
priv->is_connected = true;
/* Schedules an event that acquires the rtnl lock. */
- cfg80211_connect_result(priv->upperdev, requested_bss, NULL, 0, NULL, 0,
+ cfg80211_connect_result(priv->upperdev,
+ priv->is_connected ? fake_router_bssid : NULL,
+ NULL, 0, NULL, 0,
status, GFP_KERNEL);
netif_carrier_on(priv->upperdev);
}
--
2.25.1