The netif_rx_ni() function frees the skb so we can't dereference it to save the skb->len. Fixes: 61e121047645 ("staging: gdm7240: adding LTE USB driver") Cc: stable <stable@vger.kernel.org> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20220228074331.GA13685@kili Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>