From: Johan Hovold <johan@xxxxxxxxxx> commit 7fd25e6fc035f4b04b75bca6d7e8daa069603a76 upstream. The disconnect callback was accessing the hardware-descriptor private data after having having freed it. Fixes: 7490b008d123 ("ieee802154: add support for atusb transceiver") Cc: stable <stable@xxxxxxxxxxxxxxx> # 4.2 Cc: Alexander Aring <alex.aring@xxxxxxxxx> Reported-by: syzbot+f4509a9138a1472e7e80@xxxxxxxxxxxxxxxxxxxxxxxxx Signed-off-by: Johan Hovold <johan@xxxxxxxxxx> Signed-off-by: Stefan Schmidt <stefan@xxxxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/ieee802154/atusb.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/net/ieee802154/atusb.c +++ b/drivers/net/ieee802154/atusb.c @@ -756,10 +756,11 @@ static void atusb_disconnect(struct usb_ ieee802154_unregister_hw(atusb->hw); + usb_put_dev(atusb->usb_dev); + ieee802154_free_hw(atusb->hw); usb_set_intfdata(interface, NULL); - usb_put_dev(atusb->usb_dev); pr_debug("atusb_disconnect done\n"); }