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List: wireshark-bugs
Subject: [Wireshark-bugs] [Bug 16744] New: Buildbot crash output: fuzz-2020-07-29-23096.pcap
From: bugzilla-daemon () wireshark ! org
Date: 2020-07-29 18:50:04
Message-ID: 010001739be8fc17-1e5651c2-2d35-4cb9-aee2-c7126828ba35-000000 () us-east-1 ! amazonses ! com
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Date: Wed, 29 Jul 2020 18:50:03 +0000
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X-Bugzilla-URL: https://bugs.wireshark.org/bugzilla/
Auto-Submitted: auto-generated
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16744
Bug ID: 16744
Summary: Buildbot crash output: fuzz-2020-07-29-23096.pcap
Product: Wireshark
Version: unspecified
Hardware: x86-64
OS: Ubuntu
Status: CONFIRMED
Severity: Major
Priority: High
Component: Dissection engine (libwireshark)
Assignee: bugzilla-admin@wireshark.org
Reporter: buildbot-do-not-reply@wireshark.org
Target Milestone: ---
Problems have been found with the following capture file:
https://www.wireshark.org/download/automated/captures/fuzz-2020-07-29-23096.pcap
stderr:
Input file: /home/wireshark/menagerie/menagerie/produce.pcapng
Build host information:
Linux build6 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 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=5274
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_URL=http://buildbot.wireshark.org/wireshark-master/
BUILDBOT_REPOSITORY=ssh://wireshark-buildbot@code.wireshark.org:29418/wireshark
BUILDBOT_GOT_REVISION=f8efccc3cc1e8d604a4fd085ab9a0f0174e9b25f
Return value: 0
Dissector bug: 0
Valgrind error count: 0
Git commit
commit f8efccc3cc1e8d604a4fd085ab9a0f0174e9b25f
Author: Guy Harris <gharris@sonic.net>
Date: Wed Jul 29 01:30:54 2020 -0700
wiretap: generate fake IDBs for more capture file types.
That makes them work as input to a mergecap that writes pcapng files.
File types that don't have a single per-file encapsulation type need
more work, with multiple fake IDBs, one for each packet encapsulation
type seen in the file, unless we can generate real IDBs.
Change-Id: I2859e4f7fb15ec0c0f31a4044dc15638e5db7826
Reviewed-on: https://code.wireshark.org/review/37983
Petri-Dish: Guy Harris <gharris@sonic.net>
Tested-by: Petri Dish Buildbot
Reviewed-by: Guy Harris <gharris@sonic.net>
Command and args:
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.asan/bin/tshark
-nVxr
** (process:27859): WARNING **: 18:37:38.113: Dissector bug, protocol Kafka, in
packet 71: ../epan/proto.c:4272: failed assertion "start_ptr != ((void*)0) ||
length == 0"
AddressSanitizer:DEADLYSIGNAL
=================================================================
==27859==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
0x7fb325552631 bp 0x7ffc82f92c90 sp 0x7ffc82f92c70 T0)
==27859==The signal is caused by a READ memory access.
==27859==Hint: address points to the zero page.
#0 0x7fb325552630 in value_get
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/ftypes/ftype-bytes.c
#1 0x7fb32554fff3 in fvalue_get
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/ftypes/ftypes.c:627:9
#2 0x7fb32572e398 in proto_item_fill_label
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:8791:18
#3 0x7fb3256a798f in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:186:9
#4 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#5 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#6 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#7 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#8 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#9 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#10 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#11 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#12 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#13 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#14 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#15 0x7fb3256a74f5 in proto_tree_print
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:155:5
#16 0x55bf8dd60773 in print_packet
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:4140:12
#17 0x55bf8dd60412 in process_packet_single_pass
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:3773:7
#18 0x55bf8dd63b97 in process_cap_file_single_pass
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:3412:9
#19 0x55bf8dd5d62c in process_cap_file
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:3567:26
#20 0x55bf8dd57341 in main
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:2051:16
#21 0x7fb317645b96 in __libc_start_main
/build/glibc-2ORdQG/glibc-2.27/csu/../csu/libc-start.c:310
#22 0x55bf8dc53cd9 in _start
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.asan/bin/tshark+0x59cd9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/ftypes/ftype-bytes.c
in value_get
==27859==ABORTING
[ no debug trace ]
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--15960486031.9CaF7e4.14996
Date: Wed, 29 Jul 2020 18:50:03 +0000
MIME-Version: 1.0
Content-Type: text/html; charset="UTF-8"
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X-Bugzilla-URL: https://bugs.wireshark.org/bugzilla/
Auto-Submitted: auto-generated
<html>
<head>
<base href="https://bugs.wireshark.org/bugzilla/" />
<style>
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font-size: 12px;
font-family: Arial, Helvetica, sans-serif; }
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<body><table>
<tr>
<th class="th_left">Bug ID</th>
<td><a class="bz_bug_link
bz_status_CONFIRMED "
title="CONFIRMED - Buildbot crash output: fuzz-2020-07-29-23096.pcap"
href="https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16744">16744</a>
</td>
</tr>
<tr>
<th class="th_left">Summary</th>
<td>Buildbot crash output: fuzz-2020-07-29-23096.pcap
</td>
</tr>
<tr>
<th class="th_left">Product</th>
<td>Wireshark
</td>
</tr>
<tr>
<th class="th_left">Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th class="th_left">Hardware</th>
<td>x86-64
</td>
</tr>
<tr>
<th class="th_left">OS</th>
<td>Ubuntu
</td>
</tr>
<tr>
<th class="th_left">Status</th>
<td>CONFIRMED
</td>
</tr>
<tr>
<th class="th_left">Severity</th>
<td>Major
</td>
</tr>
<tr>
<th class="th_left">Priority</th>
<td>High
</td>
</tr>
<tr>
<th class="th_left">Component</th>
<td>Dissection engine (libwireshark)
</td>
</tr>
<tr>
<th class="th_left">Assignee</th>
<td>bugzilla-admin@wireshark.org
</td>
</tr>
<tr>
<th class="th_left">Reporter</th>
<td>buildbot-do-not-reply@wireshark.org
</td>
</tr>
<tr>
<th class="th_left">Target Milestone</th>
<td>---
</td>
</tr></table>
<p>
<div>
<pre>Problems have been found with the following capture file:
<a href="https://www.wireshark.org/download/automated/captures/fuzz-2020-07-29-23096.p \
cap">https://www.wireshark.org/download/automated/captures/fuzz-2020-07-29-23096.pcap</a>
stderr:
Input file: /home/wireshark/menagerie/menagerie/produce.pcapng
Build host information:
Linux build6 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 23:41:39 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=5274
BUILDBOT_BUILDERNAME=Clang Code Analysis
BUILDBOT_URL=<a href="http://buildbot.wireshark.org/wireshark-master/">http://buildbot.wireshark.org/wireshark-master/</a>
BUILDBOT_REPOSITORY=ssh://<a \
href="mailto:wireshark-buildbot@code.wireshark.org">wireshark-buildbot@code.wireshark.org</a>:29418/wireshark
BUILDBOT_GOT_REVISION=f8efccc3cc1e8d604a4fd085ab9a0f0174e9b25f
Return value: 0
Dissector bug: 0
Valgrind error count: 0
Git commit
<a href="https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=f8efccc3cc1e8d604a4fd085ab9a0f0174e9b25f">commit \
f8efccc3cc1e8d604a4fd085ab9a0f0174e9b25f</a>
Author: Guy Harris <<a \
href="mailto:gharris@sonic.net">gharris@sonic.net</a>>
Date: Wed Jul 29 01:30:54 2020 -0700
wiretap: generate fake IDBs for more capture file types.
That makes them work as input to a mergecap that writes pcapng files.
File types that don't have a single per-file encapsulation type need
more work, with multiple fake IDBs, one for each packet encapsulation
type seen in the file, unless we can generate real IDBs.
Change-Id: <a href="https://code.wireshark.org/review/#/q/I2859e4f7fb15ec0c0f31a4044dc15638e5db7826">I2859e4f7fb15ec0c0f31a4044dc15638e5db7826</a>
Reviewed-on: <a href="https://code.wireshark.org/review/37983">https://code.wireshark.org/review/37983</a>
Petri-Dish: Guy Harris <<a \
href="mailto:gharris@sonic.net">gharris@sonic.net</a>> Tested-by: Petri \
Dish Buildbot Reviewed-by: Guy Harris <<a \
href="mailto:gharris@sonic.net">gharris@sonic.net</a>>
Command and args:
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.asan/bin/tshark
-nVxr
** (process:27859): WARNING **: 18:37:38.113: Dissector bug, protocol Kafka, in
packet 71: ../epan/proto.c:4272: failed assertion "start_ptr != ((void*)0) ||
length == 0"
AddressSanitizer:DEADLYSIGNAL
=================================================================
==27859==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
0x7fb325552631 bp 0x7ffc82f92c90 sp 0x7ffc82f92c70 T0)
==27859==The signal is caused by a READ memory access.
==27859==Hint: address points to the zero page.
#0 0x7fb325552630 in value_get
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/ftypes/ftype-bytes.c
#1 0x7fb32554fff3 in fvalue_get
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/ftypes/ftypes.c:627:9
#2 0x7fb32572e398 in proto_item_fill_label
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:8791:18
#3 0x7fb3256a798f in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:186:9
#4 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#5 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#6 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#7 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#8 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#9 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#10 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#11 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#12 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#13 0x7fb3256a846c in proto_tree_print_node
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:241:13
#14 0x7fb3256e8627 in proto_tree_children_foreach
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/proto.c:722:3
#15 0x7fb3256a74f5 in proto_tree_print
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/print.c:155:5
#16 0x55bf8dd60773 in print_packet
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:4140:12
#17 0x55bf8dd60412 in process_packet_single_pass
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:3773:7
#18 0x55bf8dd63b97 in process_cap_file_single_pass
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:3412:9
#19 0x55bf8dd5d62c in process_cap_file
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:3567:26
#20 0x55bf8dd57341 in main
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../tshark.c:2051:16
#21 0x7fb317645b96 in __libc_start_main
/build/glibc-2ORdQG/glibc-2.27/csu/../csu/libc-start.c:310
#22 0x55bf8dc53cd9 in _start
(/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/install.asan/bin/tshark+0x59cd9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/home/wireshark/builders/wireshark-master-fuzz/clangcodeanalysis/build/cmbuild/../epan/ftypes/ftype-bytes.c
in value_get
==27859==ABORTING
[ no debug trace ]</pre>
</div>
</p>
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