[Guy Harris <gharris@xxxxxxxxx>]

So the libpcap main and 1.10 branches include changes to

	not clear the CANFD_FDF flag for FD frames;

	put the multi-byte fields in the CAN XL header into little-endian byte order;

and the Wireshark main and 4.2 branches include changes to

	treat CAN frames without the CANXL_XLF flag or the CANFD_FDF flag as FD frames if they're exactly 72 bytes long, to work around the (fixed in the main and 1.10 branches) libpcap bug where CANFD_FDF is unintentionally cleared;

	dissect CAN XL frames;

	hand LINKTYPE_LINUX_SLL frames with a protocol type of CAN XL to the SocketCAN dissector;

so I think this issue will be resolved by the next Wireshark and libpcap releases.