This particular crash with transum didn’t occur just by launching Wireshark though, but only when reading a capture file or attempting to capture packets from an interface, so merely starting the application wouldn’t have caught it.
- Chris From: Wireshark-dev [mailto:[email protected]] On Behalf Of Anders Broman Sent: Tuesday, September 18, 2018 9:42 AM To: Developer support list for Wireshark <[email protected]> Subject: Re: [Wireshark-dev] Unhandled exception Hi, At the very least we should have a test step activating all protocols and starting the application. As they are disabled by default perhaps fussing is overkill, they might prolong fussing time unduly? Regards Anders From: Wireshark-dev <[email protected]<mailto:[email protected]>> On Behalf Of Maynard, Chris Sent: den 18 september 2018 15:36 To: Developer support list for Wireshark <[email protected]<mailto:[email protected]>> Subject: Re: [Wireshark-dev] Unhandled exception Thanks. Should the fuzz tester(s) enable all dissectors by default? If I “enable all protocols”, then currently the enabled_protos file lists these 3: prp, stcsig and transum. - Chris From: Wireshark-dev [mailto:[email protected]] On Behalf Of Pascal Quantin Sent: Tuesday, September 18, 2018 4:26 AM To: Developer support list for Wireshark <[email protected]<mailto:[email protected]>> Subject: Re: [Wireshark-dev] Unhandled exception https://code.wireshark.org/review/c/29715/ Cheers, Pascal. Le mar. 18 sept. 2018 à 10:22, Pascal Quantin <[email protected]<mailto:[email protected]>> a écrit : I'm uploading a patch. Pascal. Le mar. 18 sept. 2018 à 10:20, Pascal Quantin <[email protected]<mailto:[email protected]>> a écrit : Hi Anders, Le mar. 18 sept. 2018 à 10:19, Anders Broman <[email protected]<mailto:[email protected]>> a écrit : Hi, I think that the problem is that one of these fields has changed name, but debugging the registration phase is hard on Windows as the console is not open...GRR this seems to be the ssl.record.content_type field. We should check if we can make Transum more robust to this kind of errors in the future. * The following are the field ids for the protocol values used by TRANSUM. Make sure they line up with ehf_of_interest order */ HF_OF_INTEREST_INFO hf_of_interest[HF_INTEREST_END_OF_LIST] = { { -1, "ip.proto" }, { -1, "ipv6.nxt" }, { -1, "tcp.analysis.retransmission" }, { -1, "tcp.analysis.keep_alive" }, { -1, "tcp.flags.syn" }, { -1, "tcp.flags.ack" }, { -1, "tcp.flags.reset" }, { -1, "tcp.flags.urg" }, { -1, "tcp.seq" }, { -1, "tcp.srcport" }, { -1, "tcp.dstport" }, { -1, "tcp.stream" }, { -1, "tcp.len" }, { -1, "udp.srcport" }, { -1, "udp.dstport" }, { -1, "udp.stream" }, { -1, "udp.length" }, { -1, "ssl.record.content_type" }, { -1, "tds.type" }, { -1, "tds.length" }, { -1, "smb.mid" }, { -1, "smb2.sesid" }, { -1, "smb2.msg_id" }, { -1, "smb2.cmd" }, { -1, "dcerpc.ver" }, { -1, "dcerpc.pkt_type" }, { -1, "dcerpc.cn_call_id" }, { -1, "dcerpc.cn_ctx_id" }, { -1, "dns.id<http://dns.id>"}, }; Regards Anders -----Original Message----- From: Wireshark-dev <[email protected]<mailto:[email protected]>> On Behalf Of João Valverde Sent: den 18 september 2018 10:10 To: [email protected]<mailto:[email protected]> Subject: Re: [Wireshark-dev] Unhandled exception On 18/09/18 01:07, Maynard, Chris wrote: > Thanks for the tips Richard, but after some additional testing and some > head-scratching, I discovered the source of the problem was something in my > profile, because if I switched to a pristine profile, then master ran fine. > Through divide-and-conquer/trial-and-error, I discovered that it was due to > enabling the transum dissector, although I can't figure out why enabling the > transum dissector causes this, and then only for master. Enabling it for > 2.6.2 seems fine. > > Maybe someone could just confirm if they also experience this exception if > they enable the transum dissector? If confirmed, I will file a bug report. Confirmed on the latest master. Enabling transum crashes wireshark. > The exception, for reference: > > Unhandled exception ("proto.c:6497: failed assertion "(guint)hfid < > gpa_hfinfo.len" (Unregistered hf!)", group=1, code=6) > > Thanks. > - Chris > > -----Original Message----- > From: Wireshark-dev > [mailto:[email protected]<mailto:[email protected]>] > On Behalf Of Richard Sharpe > Sent: Monday, September 17, 2018 4:22 PM > To: Developer support list for Wireshark > <[email protected]<mailto:[email protected]>> > Subject: Re: [Wireshark-dev] Unhandled exception > > <snip> CONFIDENTIALITY NOTICE: This message is the property of International Game Technology PLC and/or its subsidiaries and may contain proprietary, confidential or trade secret information. 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