Buildbot crash output: fuzz-2021-01-22-3387835.pcap

Problems have been found with the following capture file:

https://www.wireshark.org/download/automated/captures/fuzz-2021-01-22-3387835.pcap

stderr:

Input file: /home/wireshark/menagerie/menagerie/issue-16955-journal_entries.pcapng

Build host information:
Linux build1 5.4.0-60-generic #67-Ubuntu SMP Tue Jan 5 18:31:36 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
Distributor ID:	Ubuntu
Description:	Ubuntu 20.04.1 LTS
Release:	20.04
Codename:	focal

Buildbot information:
BUILDBOT_REPOSITORY=git@gitlab.com:wireshark/wireshark.git
BUILDBOT_WORKERNAME=fuzz-test
BUILDBOT_URL=https://buildbot.wireshark.org/wireshark-3.4/
BUILDBOT_BUILDNUMBER=49
BUILDBOT_BUILDERNAME=Fuzz Test
BUILDBOT_GOT_REVISION=227ed8cced57755022060a6789129828c8004a6c

Return value:  0

Dissector bug:  0

Valgrind error count:  7



Git commit
commit 227ed8cced57755022060a6789129828c8004a6c
Author: Jaap Keuter <jaap.keuter@xs4all.nl>
Date:   Thu Jan 21 09:40:38 2021 +0000

    FC ELS: Fix address length of FCWWN address in logout message
   
    Closes #17168
   
   
    (cherry picked from commit 13e04a21926524ed996f95a7cc350287383f1461)


Command and args: ./tools/valgrind-wireshark.sh -b /home/wireshark/builders/wireshark-3.4-fuzz/fuzztest/install.plain/bin 
==2051120== Memcheck, a memory error detector
==2051120== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==2051120== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==2051120== Command: /home/wireshark/builders/wireshark-3.4-fuzz/fuzztest/install.plain/bin/tshark -nr /fuzz/buildbot/fuzztest/valgrind-fuzz-3.4/fuzz-2021-01-22-3387835.pcap
==2051120==
==2051120== Conditional jump or move depends on uninitialised value(s)
==2051120==    at 0xBEC27C4: pcapng_read_systemd_journal_export_block (pcapng.c:2485)
==2051120==    by 0xBEBCE9C: pcapng_read_block (pcapng.c:2749)
==2051120==    by 0xBEBD09A: pcapng_read (pcapng.c:3014)
==2051120==    by 0xBED7313: wtap_read (wtap.c:1490)
==2051120==    by 0x12A17B: process_cap_file_single_pass (tshark.c:3439)
==2051120==    by 0x12774A: process_cap_file (tshark.c:3615)
==2051120==    by 0x124C5B: main (tshark.c:2056)
==2051120==
==2051120==
==2051120== HEAP SUMMARY:
==2051120==     in use at exit: 41,389 bytes in 203 blocks
==2051120==   total heap usage: 329,025 allocs, 328,822 frees, 40,569,274 bytes allocated
==2051120==
==2051120== LEAK SUMMARY:
==2051120==    definitely lost: 0 bytes in 0 blocks
==2051120==    indirectly lost: 0 bytes in 0 blocks
==2051120==      possibly lost: 0 bytes in 0 blocks
==2051120==    still reachable: 22,010 bytes in 168 blocks
==2051120==         suppressed: 19,379 bytes in 35 blocks
==2051120== Rerun with --leak-check=full to see details of leaked memory
==2051120==
==2051120== Use --track-origins=yes to see where uninitialised values come from
==2051120== For lists of detected and suppressed errors, rerun with: -s
==2051120== ERROR SUMMARY: 7 errors from 1 contexts (suppressed: 0 from 0)

no debug trace