The driver was accessing its driver data after having freed it.
Fixes: 51f3baad7de9 ("can: mcba_usb: Add support for Microchip CAN BUS Analyzer")
Cc: stable <stable@xxxxxxxxxxxxxxx> # 4.12
Cc: Remigiusz Kołłątaj <remigiusz.kollataj@xxxxxxxxxx>
Reported-by: syzbot+e29b17e5042bbc56fae9@xxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
drivers/net/can/usb/mcba_usb.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c
index 19a702ac49e4..21faa2ec4632 100644
--- a/drivers/net/can/usb/mcba_usb.c
+++ b/drivers/net/can/usb/mcba_usb.c
@@ -876,9 +876,8 @@ static void mcba_usb_disconnect(struct usb_interface *intf)
netdev_info(priv->netdev, "device disconnected\n");
unregister_candev(priv->netdev);
- free_candev(priv->netdev);
-
mcba_urb_unlink(priv);
+ free_candev(priv->netdev);
}
static struct usb_driver mcba_usb_driver = {
--
2.23.0
