Buildbot crash output: fuzz-2020-11-19-20476.pcap

Problems have been found with the following capture file:

https://www.wireshark.org/download/automated/captures/fuzz-2020-11-19-20476.pcap

stderr:

Input file: /home/wireshark/menagerie/menagerie/xrite-i1displaypro-i1profiler.pcap.gz

Build host information:
Linux build6 4.15.0-122-generic #124-Ubuntu SMP Thu Oct 15 13:03:05 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
Distributor ID:	Ubuntu
Description:	Ubuntu 18.04.5 LTS
Release:	18.04
Codename:	bionic

Buildbot information:
BUILDBOT_WORKERNAME=clang-code-analysis
BUILDBOT_BUILDNUMBER=5344
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_URL=https://buildbot.wireshark.org/wireshark-master/
BUILDBOT_REPOSITORY=git@gitlab.com:wireshark/wireshark.git
BUILDBOT_GOT_REVISION=1d7bc367e943464f912a67ad436fabddb1a61a37

Return value:  0

Dissector bug:  0

Valgrind error count:  1



Latest (but not necessarily the problem) commit:
1d7bc367e9 GSM A Common: Dissect polygon points


Command and args: ./tools/valgrind-wireshark.sh -b /home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin  -T
==10764== Memcheck, a memory error detector
==10764== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==10764== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==10764== Command: /home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin/tshark -Vx -nr /fuzz/buildbot/clangcodeanalysis/valgrind-fuzz/fuzz-2020-11-19-20476.pcap
==10764==
==10764==
==10764== HEAP SUMMARY:
==10764==     in use at exit: 597,877 bytes in 8,905 blocks
==10764==   total heap usage: 2,023,536 allocs, 2,014,631 frees, 157,450,596 bytes allocated
==10764==
==10764== LEAK SUMMARY:
==10764==    definitely lost: 556,928 bytes in 8,702 blocks
==10764==    indirectly lost: 0 bytes in 0 blocks
==10764==      possibly lost: 0 bytes in 0 blocks
==10764==    still reachable: 40,154 bytes in 172 blocks
==10764==         suppressed: 795 bytes in 31 blocks
==10764== Rerun with --leak-check=full to see details of leaked memory
==10764==
==10764== For counts of detected and suppressed errors, rerun with: -v
==10764== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
Definitely + indirectly (556928 + 0) exceeds max (102400).

no debug trace