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Issue 868477 link

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Issue metadata

Status: Verified
Owner: ----
Closed: Jul 30
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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ASSERT: nBits <= 32

Project Member Reported by ClusterFuzz, Jul 27

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5519886210826240

Fuzzer: libFuzzer_pdf_hint_table_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  nBits <= 32
  CFX_BitStream::GetBits
  CPDF_HintTables::ReadSharedObjHintTable
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=578609:578610

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5519886210826240

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Project Member

Comment 1 by ClusterFuzz, Jul 27

Components: Internals>Plugins>PDF
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.
Project Member

Comment 2 by ClusterFuzz, Jul 27

Cc: art-sn...@yandex-team.ru
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Parse obj nums range within Hint tables for shared groups. by art-snake@yandex-team.ru - https://pdfium.googlesource.com/pdfium/+/b3bab6ce43cab8f4cd35e2205491c278a400d733

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Owner: thestig@chromium.org
Status: Assigned (was: Untriaged)
Project Member

Comment 4 by bugdroid1@chromium.org, Jul 30

The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/552f1ec14f94c09fce4126b5e72d3c02c150ab35

commit 552f1ec14f94c09fce4126b5e72d3c02c150ab35
Author: Artem Strygin <art-snake@yandex-team.ru>
Date: Mon Jul 30 16:30:28 2018

Check maximum bit count of shared group object numbers.

Bug:  chromium:868477 
Change-Id: I5957c5ef051bc4fa8eb51efa6a7fc142996742c5
Reviewed-on: https://pdfium-review.googlesource.com/39130
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>

[modify] https://crrev.com/552f1ec14f94c09fce4126b5e72d3c02c150ab35/core/fpdfapi/parser/cpdf_hint_tables.cpp

Owner: ----
Status: Fixed (was: Assigned)
 Issue 868664  has been merged into this issue.
Project Member

Comment 7 by bugdroid1@chromium.org, Jul 30

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1ad1c6c2636aed0aca6c7023730b2b0b7b5fa861

commit 1ad1c6c2636aed0aca6c7023730b2b0b7b5fa861
Author: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Mon Jul 30 22:05:27 2018

Roll src/third_party/pdfium 8584902d81ff..d718d634b7aa (5 commits)

https://pdfium.googlesource.com/pdfium.git/+log/8584902d81ff..d718d634b7aa


git log 8584902d81ff..d718d634b7aa --date=short --no-merges --format='%ad %ae %s'
2018-07-30 tsepez@chromium.org Type-safe iteration over CXFA_ContentLayoutItems.
2018-07-30 thestig@chromium.org Fix a misspelling of "locale".
2018-07-30 thestig@chromium.org Remove a NOTREACHED() in FormValueNode_SetChildContent().
2018-07-30 hnakashima@chromium.org Remove CFGAS_PDFFontMgr::m_FDE2PDFFont font cache.
2018-07-30 art-snake@yandex-team.ru Check maximum bit count of shared group object numbers.


Created with:
  gclient setdep -r src/third_party/pdfium@d718d634b7aa

The AutoRoll server is located here: https://pdfium-roll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.



BUG= chromium:868477 
TBR=dsinclair@chromium.org

Change-Id: I1c8753d90baf966d4c51eb20fec35a26ca8d2778
Reviewed-on: https://chromium-review.googlesource.com/1155429
Reviewed-by: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#579188}
[modify] https://crrev.com/1ad1c6c2636aed0aca6c7023730b2b0b7b5fa861/DEPS

Project Member

Comment 8 by ClusterFuzz, Jul 31

ClusterFuzz has detected this issue as fixed in range 579185:579189.

Detailed report: https://clusterfuzz.com/testcase?key=5519886210826240

Fuzzer: libFuzzer_pdf_hint_table_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: ASSERT
Crash Address: 
Crash State:
  nBits <= 32
  CFX_BitStream::GetBits
  CPDF_HintTables::ReadSharedObjHintTable
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=578609:578610
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=579185:579189

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5519886210826240

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
Project Member

Comment 9 by ClusterFuzz, Jul 31

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 5519886210826240 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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