https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16647
Bug ID: 16647
Summary: Buildbot crash output: fuzz-2020-06-21-1632.pcap
Product: Wireshark
Version: unspecified
Hardware: x86-64
OS: Ubuntu
Status: CONFIRMED
Severity: Major
Priority: High
Component: Dissection engine (libwireshark)
Assignee: bugzilla-ad...@wireshark.org
Reporter: buildbot-do-not-re...@wireshark.org
Target Milestone: ---
Problems have been found with the following capture file:
https://www.wireshark.org/download/automated/captures/fuzz-2020-06-21-1632.pcap
stderr:
Input file: /home/wireshark/menagerie/menagerie/16666-reassembly.pcapng
Build host information:
Linux build6 4.15.0-106-generic #107-Ubuntu SMP Thu Jun 4 11:27:52 UTC 2020
x86_64 x86_64 x86_64 GNU/Linux
Distributor ID: Ubuntu
Description: Ubuntu 18.04.4 LTS
Release: 18.04
Codename: bionic
Buildbot information:
BUILDBOT_WORKERNAME=clang-code-analysis
BUILDBOT_BUILDNUMBER=5236
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_URL=http://buildbot.wireshark.org/wireshark-master/
BUILDBOT_REPOSITORY=ssh://wireshark-build...@code.wireshark.org:29418/wireshark
BUILDBOT_GOT_REVISION=78a507b142d1f10b54a379b1ceb837b9db687618
Return value: 0
Dissector bug: 0
Valgrind error count: 2
Git commit
commit 78a507b142d1f10b54a379b1ceb837b9db687618
Author: Guy Harris <ghar...@sonic.net>
Date: Sat Jun 20 18:33:42 2020 -0700
VRT: fix the type of elements of an array of pointers to hf_ values.
"int * const a[]" means "array of const pointers to (non-const) int". so
the array elements are all const; "const int *a[]" means "array of
(non-const) pointrs to const int".
Change-Id: I790f6ecb2d9616ff1ae9ca47364e1d5443e36ace
Reviewed-on: https://code.wireshark.org/review/37528
Petri-Dish: Guy Harris <ghar...@sonic.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <ghar...@sonic.net>
Command and args: ./tools/valgrind-wireshark.sh -b
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin
==23543== Memcheck, a memory error detector
==23543== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==23543== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info
==23543== Command:
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin/tshark
-nr /fuzz/buildbot/clangcodeanalysis/valgrind-fuzz/fuzz-2020-06-21-1632.pcap
==23543==
==23543== Use of uninitialised value of size 8
==23543== at 0x8331638: wmem_map_lookup (wmem_map.c:264)
==23543== by 0x77554F1: rtps_util_get_topic_info (packet-rtps.c:4493)
==23543== by 0x7754CCC: rtps_util_topic_info_add_tree (packet-rtps.c:4513)
==23543== by 0x774AFE6: dissect_ACKNACK (packet-rtps.c:8143)
==23543== by 0x7749850: dissect_rtps_submessage_v1 (packet-rtps.c:10295)
==23543== by 0x77494CA: dissect_rtps (packet-rtps.c:10547)
==23543== by 0x7748AF2: dissect_rtps_udp (packet-rtps.c:10577)
==23543== by 0x839F222: dissector_try_heuristic (packet.c:2815)
==23543== by 0x7966475: decode_udp_ports (packet-udp.c:709)
==23543== by 0x7968F19: dissect (packet-udp.c:1261)
==23543== by 0x796727D: dissect_udp (packet-udp.c:1267)
==23543== by 0x83A0F57: call_dissector_through_handle (packet.c:712)
==23543==
==23543==
==23543== HEAP SUMMARY:
==23543== in use at exit: 43,319 bytes in 204 blocks
==23543== total heap usage: 370,976 allocs, 370,772 frees, 41,954,579 bytes
allocated
==23543==
==23543== LEAK SUMMARY:
==23543== definitely lost: 0 bytes in 0 blocks
==23543== indirectly lost: 0 bytes in 0 blocks
==23543== possibly lost: 304 bytes in 1 blocks
==23543== still reachable: 42,212 bytes in 170 blocks
==23543== suppressed: 803 bytes in 33 blocks
==23543== Rerun with --leak-check=full to see details of leaked memory
==23543==
==23543== For counts of detected and suppressed errors, rerun with: -v
==23543== Use --track-origins=yes to see where uninitialised values come from
==23543== ERROR SUMMARY: 2 errors from 1 contexts (suppressed: 0 from 0)
[ no debug trace ]
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