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Bug ID	12840
Summary	Buildbot crash output: fuzz-2016-09-08-30893.pcap
Product	Wireshark
Version	unspecified
Hardware	x86-64
URL	https://www.wireshark.org/download/automated/captures/fuzz-2016-09-08-30893.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-2016-09-08-30893.pcap

stderr:
Input file:
/home/wireshark/menagerie/menagerie/5982-ipp_print_test_page_from_UML_to_host_cups-pdf_printer.pcap

Build host information:
Linux wsbb04 4.4.0-34-generic #53-Ubuntu SMP Wed Jul 27 16:06:39 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=3661
BUILDBOT_URL=http://buildbot.wireshark.org/wireshark-master/
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_GOT_REVISION=1e83b59af8698256c11bb66fe13f912f3ba75471

Return value:  1

Dissector bug:  0

Valgrind error count:  0



Git commit
commit 1e83b59af8698256c11bb66fe13f912f3ba75471
Author: Pascal Quantin <pascal.quantin@gmail.com>
Date:   Thu Sep 8 07:20:29 2016 +0200

    U3V: ensure that gencp_transaction_t structure is fully initialized

    Bug: 12829
    Change-Id: Iee8817fc0331af037284e5ec21b30671c6b3bd7d
    Reviewed-on: https://code.wireshark.org/review/17569
    Reviewed-by: Pascal Quantin <pascal.quantin@gmail.com>


=================================================================
==6660==ERROR: AddressSanitizer: heap-use-after-free on address 0x60c000549f60
at pc 0x000000440e63 bp 0x7ffe484fd150 sp 0x7ffe484fc900
READ of size 89 at 0x60c000549f60 thread T0
    #0 0x440e62 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x440e62)
    #1 0x50f9ca 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x50f9ca)
    #2 0x50e690 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x50e690)
    #3 0x508cf5 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x508cf5)
    #4 0x7f8b0249382f  (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)
    #5 0x423288 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x423288)

0x60c000549fb8 is located 0 bytes to the right of 120-byte region
[0x60c000549f40,0x60c000549fb8)
freed by thread T0 here:
    #0 0x4c3230 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x4c3230)
    #1 0x7f8b0dab8183 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/lib/libwireshark.so.0+0x8ede183)
    #2 0x508cf5 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x508cf5)
    #3 0x7f8b0249382f  (/lib/x86_64-linux-gnu/libc.so.6+0x2082f)

previously allocated by thread T0 here:
    #0 0x4c33b8 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x4c33b8)
    #1 0x7f8b042ae728  (/lib/x86_64-linux-gnu/libglib-2.0.so.0+0x4f728)
    #2 0x7f8b0dabbc32 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/lib/libwireshark.so.0+0x8ee1c32)
    #3 0x7f8b0cc16ac8 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/lib/libwireshark.so.0+0x803cac8)
    #4 0x7f8b0c4b27ac 
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/lib/libwireshark.so.0+0x78d87ac)

SUMMARY: AddressSanitizer: heap-use-after-free
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install/bin/tshark+0x440e62) 
Shadow bytes around the buggy address:
  0x0c18800a1390: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c18800a13a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c18800a13b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c18800a13c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c18800a13d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c18800a13e0: fa fa fa fa fa fa fa fa fd fd fd fd[fd]fd fd fd
  0x0c18800a13f0: fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa fa
  0x0c18800a1400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  0x0c18800a1410: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
  0x0c18800a1420: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
  0x0c18800a1430: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==6660==ABORTING

[ no debug trace ]

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