Exception thrown when parsing truncated transport-layer payload in IPv6 packets

[SuperBigYB]

When parsing a pcap file containing IPv6 packets with truncated transport-layer payloads, libtins throws an exception. However, this packet has a complete UDP header.

  Tins::FileSniffer sniffer("ipv6_truncated.pcap");
  Tins::Packet pkt = sniffer.next_packet();
  // pkt.pdu() is nullptr

Sample pcap: ipv6_truncated.pcap.zip