Wireshark-bugs: [Wireshark-bugs] [Bug 13200] New: Buildbot crash output: fuzz-2016-12-02-8532.pc
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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Fri, 02 Dec 2016 22:50:02 +0000
Bug ID 13200
Summary Buildbot crash output: fuzz-2016-12-02-8532.pcap
Product Wireshark
Version unspecified
Hardware x86-64
URL https://www.wireshark.org/download/automated/captures/fuzz-2016-12-02-8532.pcap
OS Ubuntu
Status CONFIRMED
Severity Major
Priority High
Component Dissection engine (libwireshark)
Assignee bugzilla-admin@wireshark.org
Reporter buildbot-do-not-reply@wireshark.org 

Problems have been found with the following capture file:

https://www.wireshark.org/download/automated/captures/fuzz-2016-12-02-8532.pcap

stderr:
Input file: /home/wireshark/menagerie/menagerie/11275-cops-fuzz-test.pcap

Build host information:
Linux wsbb04 4.4.0-47-generic #68-Ubuntu SMP Wed Oct 26 19:39:52 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux
Distributor ID:    Ubuntu
Description:    Ubuntu 16.04.1 LTS
Release:    16.04
Codename:    xenial

Buildbot information:
BUILDBOT_REPOSITORY=ssh://wireshark-buildbot@code.wireshark.org:29418/wireshark
BUILDBOT_WORKERNAME=clang-code-analysis
BUILDBOT_BUILDNUMBER=3801
BUILDBOT_URL=http://buildbot.wireshark.org/wireshark-master/
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_GOT_REVISION=2ec9093ed8a21737bfad150bc9daa6b3a6bb103b

Return value:  0

Dissector bug:  0

Valgrind error count:  1



Git commit
commit 2ec9093ed8a21737bfad150bc9daa6b3a6bb103b
Author: Michael Mann <mmann78@netscape.net>
Date:   Fri Dec 2 11:57:43 2016 -0500

    Make SMB2 MessageId field a FT_UINT64

    Also adjust the smb2_info_t structure that handles the value.

    Bug: 12915
    Change-Id: Ia314b8dc840b9d26d2c1d185f06ef93f242a3a7b
    Reviewed-on: https://code.wireshark.org/review/19019
    Petri-Dish: Michael Mann <mmann78@netscape.net>
    Tested-by: Petri Dish Buildbot <buildbot-no-reply@wireshark.org>
    Reviewed-by: Michael Mann <mmann78@netscape.net>


==30804== Memcheck, a memory error detector
==30804== Copyright (C) 2002-2015, and GNU GPL'd, by Julian Seward et al.
==30804== Using Valgrind-3.11.0 and LibVEX; rerun with -h for copyright info
==30804== Command:
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.plain/bin/tshark
-nr /fuzz/buildbot/clangcodeanalysis/valgrind-fuzz/fuzz-2016-12-02-8532.pcap
==30804== 
==30804== Conditional jump or move depends on uninitialised value(s)
==30804==    at 0x6B9CEF4: dissect_cops_pdu (packet-cops.c:1102)
==30804==    by 0x718F6F5: tcp_dissect_pdus (packet-tcp.c:3468)
==30804==    by 0x6B9B8C1: dissect_cops (packet-cops.c:1134)
==30804==    by 0x69AD955: call_dissector_through_handle (packet.c:650)
==30804==    by 0x69AD955: call_dissector_work (packet.c:725)
==30804==    by 0x69AD81E: dissector_try_uint_new (packet.c:1290)
==30804==    by 0x718FC0F: decode_tcp_ports (packet-tcp.c:5420)
==30804==    by 0x7190F2F: process_tcp_payload (packet-tcp.c:5483)
==30804==    by 0x7190488: desegment_tcp (packet-tcp.c:2990)
==30804==    by 0x7190488: dissect_tcp_payload (packet-tcp.c:5550)
==30804==    by 0x7194EF7: dissect_tcp (packet-tcp.c:6434)
==30804==    by 0x69AD955: call_dissector_through_handle (packet.c:650)
==30804==    by 0x69AD955: call_dissector_work (packet.c:725)
==30804==    by 0x69AD81E: dissector_try_uint_new (packet.c:1290)
==30804==    by 0x6DDE0C2: ip_try_dissect (packet-ip.c:1978)
==30804==    by 0x6DDE0C2: dissect_ip_v4 (packet-ip.c:2441)
==30804== 
==30804== 
==30804== HEAP SUMMARY:
==30804==     in use at exit: 6,086,006 bytes in 9,751 blocks
==30804==   total heap usage: 266,192 allocs, 256,441 frees, 37,350,306 bytes
allocated
==30804== 
==30804== LEAK SUMMARY:
==30804==    definitely lost: 536 bytes in 92 blocks
==30804==    indirectly lost: 768 bytes in 6 blocks
==30804==      possibly lost: 0 bytes in 0 blocks
==30804==    still reachable: 6,084,702 bytes in 9,653 blocks
==30804==         suppressed: 0 bytes in 0 blocks
==30804== Rerun with --leak-check=full to see details of leaked memory
==30804== 
==30804== For counts of detected and suppressed errors, rerun with: -v
==30804== Use --track-origins=yes to see where uninitialised values come from
==30804== ERROR SUMMARY: 1 errors from 1 contexts (suppressed: 0 from 0)

[ no debug trace ]

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