Wireshark · Wireshark-dev: [Wireshark-dev] payload_proto_id in SCPT dissector

[Dario Lombardo <lomato@xxxxxxxxx>]

Hi,

I'm working on fixing a bug reported by oss-fuzz, and I got stuck. The payload is TLS over SCPT.

In the sctp dissector the variable payload_proto_id is read from the tlv in dissect_data_chunk. What is it supposed to contain? Which proto_id?

Following the stack trace, this value is passed to dissect_tls as-is. That function handles the value as it was a char* containing the name of the dissector to find (indeed it is passed to find_dissector).

I can't figure out how this is supposed to work in the first place, or I am missing some piece of the puzzle.

Any help?

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