CVE-2021-47670 can: peak_usb: fix use after free bugs

In the Linux kernel, the following vulnerability has been resolved: can: peakusb: fix use after free bugs After calling peakusbnetifrxniskb, dereferencing skb is unsafe. Especially, the canframe cf which aliases skb memory is accessed after the peakusbnetifrxni. Reordering the lines solves the...