CVE-2025-21742 usbnet: ipheth: use static NDP16 location in URB

In the Linux kernel, the following vulnerability has been resolved: usbnet: ipheth: use static NDP16 location in URB Original code allowed for the start of NDP16 to be anywhere within the URB based on the wNdpIndex value in NTH16. Only the start position of NDP16 was checked, so it was possible f...