Fuzz job crash output: fuzz-2021-11-01-10735.pcap

Problems have been found with the following capture file:

https://www.wireshark.org/download/automated/captures/fuzz-2021-11-01-10735.pcap

stderr:

Input file: /var/menagerie/menagerie/Modbus_TCP_coil_di_read.pcap

Build host information:
Linux runner-yq5rrvnm-project-7898047-concurrent-2 5.4.0-89-generic #100-Ubuntu SMP Fri Sep 24 14:50:10 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.3 LTS
Release:	20.04
Codename:	focal

CI job ASan Menagerie Fuzz, ID 1734535286: 

Return value:  0

Dissector bug:  0

Valgrind error count:  0



Latest (but not necessarily the problem) commit:
55ba59cd Skinny: Resynced Skinny xml definition with code


Command and args: /builds/wireshark/wireshark/_install/bin/tshark -2  -nVxr
Running as user "root" and group "root". This could be dangerous.
AddressSanitizer:DEADLYSIGNAL
=================================================================
==57617==ERROR: AddressSanitizer: SEGV on unknown address 0x00000000000a (pc 0x7fe075f4aef4 bp 0x7ffd462c25a0 sp 0x7ffd462c2080 T0)
==57617==The signal is caused by a READ memory access.
==57617==Hint: address points to the zero page.
    #0 0x7fe075f4aef4 in dissect_modbus_response /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:1245:56
    #1 0x7fe075f4995b in dissect_modbus /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:1691:13
    #2 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #3 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #4 0x7fe077eb8360 in call_dissector_only /builds/wireshark/wireshark/build/../epan/packet.c:3268:8
    #5 0x7fe077ead574 in call_dissector_with_data /builds/wireshark/wireshark/build/../epan/packet.c:3281:8
    #6 0x7fe075f4edb7 in dissect_mbtcp_pdu_common /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:529:9
    #7 0x7fe075f4e46a in dissect_mbtcp_pdu /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:541:12
    #8 0x7fe07691a228 in tcp_dissect_pdus /builds/wireshark/wireshark/build/../epan/dissectors/packet-tcp.c:4134:13
    #9 0x7fe075f4e3a1 in dissect_mbtcp_common /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:802:5
    #10 0x7fe075f499c3 in dissect_mbtcp /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:811:12
    #11 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #12 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #13 0x7fe077eb0ab3 in dissector_try_uint_new /builds/wireshark/wireshark/build/../epan/packet.c:1448:8
    #14 0x7fe07691b24b in decode_tcp_ports /builds/wireshark/wireshark/build/../epan/dissectors/packet-tcp.c:6236:9
    #15 0x7fe076921923 in process_tcp_payload /builds/wireshark/wireshark/build/../epan/dissectors/packet-tcp.c:6320:13
    #16 0x7fe07691f31c in desegment_tcp /builds/wireshark/wireshark/build/../epan/dissectors/packet-tcp.c:3611:9
    #17 0x7fe07691d121 in dissect_tcp_payload /builds/wireshark/wireshark/build/../epan/dissectors/packet-tcp.c:6393:9
    #18 0x7fe07692e522 in dissect_tcp /builds/wireshark/wireshark/build/../epan/dissectors/packet-tcp.c:7366:17
    #19 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #20 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #21 0x7fe077eb0ab3 in dissector_try_uint_new /builds/wireshark/wireshark/build/../epan/packet.c:1448:8
    #22 0x7fe075c2cb8e in ip_try_dissect /builds/wireshark/wireshark/build/../epan/dissectors/packet-ip.c:1817:7
    #23 0x7fe075c31df7 in dissect_ip_v4 /builds/wireshark/wireshark/build/../epan/dissectors/packet-ip.c:2306:10
    #24 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #25 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #26 0x7fe077eb0ab3 in dissector_try_uint_new /builds/wireshark/wireshark/build/../epan/packet.c:1448:8
    #27 0x7fe077eb14c2 in dissector_try_uint /builds/wireshark/wireshark/build/../epan/packet.c:1472:9
    #28 0x7fe0758111d3 in dissect_ethertype /builds/wireshark/wireshark/build/../epan/dissectors/packet-ethertype.c:296:21
    #29 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #30 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #31 0x7fe077eb8360 in call_dissector_only /builds/wireshark/wireshark/build/../epan/packet.c:3268:8
    #32 0x7fe077ead574 in call_dissector_with_data /builds/wireshark/wireshark/build/../epan/packet.c:3281:8
    #33 0x7fe07672b68f in dissect_payload /builds/wireshark/wireshark/build/../epan/dissectors/packet-sll.c:414:4
    #34 0x7fe07672ac0e in dissect_sll_common /builds/wireshark/wireshark/build/../epan/dissectors/packet-sll.c:518:3
    #35 0x7fe07672a1fd in dissect_sll_v1 /builds/wireshark/wireshark/build/../epan/dissectors/packet-sll.c:547:9
    #36 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #37 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #38 0x7fe077eb8360 in call_dissector_only /builds/wireshark/wireshark/build/../epan/packet.c:3268:8
    #39 0x7fe075899c38 in dissect_frame /builds/wireshark/wireshark/build/../epan/dissectors/packet-frame.c:863:6
    #40 0x7fe077ebb7aa in call_dissector_through_handle /builds/wireshark/wireshark/build/../epan/packet.c:755:9
    #41 0x7fe077eb1123 in call_dissector_work /builds/wireshark/wireshark/build/../epan/packet.c:848:9
    #42 0x7fe077eb8360 in call_dissector_only /builds/wireshark/wireshark/build/../epan/packet.c:3268:8
    #43 0x7fe077ead574 in call_dissector_with_data /builds/wireshark/wireshark/build/../epan/packet.c:3281:8
    #44 0x7fe077eacd58 in dissect_record /builds/wireshark/wireshark/build/../epan/packet.c:622:3
    #45 0x7fe077e80598 in epan_dissect_run_with_taps /builds/wireshark/wireshark/build/../epan/epan.c:629:2
    #46 0x56029bd3fa25 in process_packet_second_pass /builds/wireshark/wireshark/build/../tshark.c:3246:5
    #47 0x56029bd3de7d in process_cap_file_second_pass /builds/wireshark/wireshark/build/../tshark.c:3388:9
    #48 0x56029bd3829c in process_cap_file /builds/wireshark/wireshark/build/../tshark.c:3658:28
    #49 0x56029bd32441 in main /builds/wireshark/wireshark/build/../tshark.c:2098:16
    #50 0x7fe06a7850b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
    #51 0x56029bc5f4ad in _start (/builds/wireshark/wireshark/_install/bin/tshark+0x5f4ad)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /builds/wireshark/wireshark/build/../epan/dissectors/packet-mbtcp.c:1245:56 in dissect_modbus_response
==57617==ABORTING

fuzz-test.sh stderr:
Running as user "root" and group "root". This could be dangerous.

no debug trace