Automatically applying components based on crash stacktrace and information from OWNERS files.

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

This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Taking ownership to investigate.

The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/e769ab578af3cf646f6268c992fd9c9dcd494708

commit e769ab578af3cf646f6268c992fd9c9dcd494708
Author: Ryan Harrison <rharrison@chromium.org>
Date: Thu Jun 07 17:14:23 2018

Revert "Reland "Simplify CPDF_HintsTable.""

This reverts commit d89f1bf48f017ab9f56df13299f75a906ed33cd0.

Reason for revert: 
This CL has introduced at least two CF issues  chromium:850407 , chromium:850440 . Additionally there is a number of changes that remove bounds checks, which I think are suspect.

BUG= chromium:850407 , chromium:850440 

Original change's description:
> Reland "Simplify CPDF_HintsTable."
> 
> This is a reland of 33591752d2cb14f2e07726ca52afce6efbdc07c9
> 
> Original change's description:
> > Simplify CPDF_HintsTable.
> > 
> > Use CPDF_LinearizedHeader directly.
> > 
> > Change-Id: Id12402ef6e6f92fef68d0932df2e1ccb2dcf06aa
> > Reviewed-on: https://pdfium-review.googlesource.com/15770
> > Reviewed-by: Lei Zhang <thestig@chromium.org>
> > Commit-Queue: Lei Zhang <thestig@chromium.org>
> 
> Change-Id: I2b5425a6533f4ce237f9ae6c483caa517105a5f7
> Reviewed-on: https://pdfium-review.googlesource.com/34130
> Reviewed-by: Lei Zhang <thestig@chromium.org>
> Commit-Queue: Art Snake <art-snake@yandex-team.ru>

TBR=thestig@chromium.org,tsepez@chromium.org,art-snake@yandex-team.ru

Change-Id: I463b5b1330f809c2cb508cbf46a804b7a11526e4
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://pdfium-review.googlesource.com/34350
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>

[modify] https://crrev.com/e769ab578af3cf646f6268c992fd9c9dcd494708/core/fpdfapi/parser/cpdf_hint_tables.h
[modify] https://crrev.com/e769ab578af3cf646f6268c992fd9c9dcd494708/core/fpdfapi/parser/cpdf_hint_tables.cpp

The following revision refers to this bug:
  https://pdfium.googlesource.com/pdfium/+/f51a4767ee7854991d94d6814aa13f5763f05760

commit f51a4767ee7854991d94d6814aa13f5763f05760
Author: Artem Strygin <art-snake@yandex-team.ru>
Date: Thu Jun 07 18:01:27 2018

Check is first page number valid in CPDF_LinearizedHeader.

Bug= chromium:850407 , chromium:850440 

Change-Id: I0115f75677db618b0de5e1e78b13da80b1da9559
Reviewed-on: https://pdfium-review.googlesource.com/34390
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>

[modify] https://crrev.com/f51a4767ee7854991d94d6814aa13f5763f05760/core/fpdfapi/parser/cpdf_linearized_header.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/f8a8b721bbc47542d98e4eaf50f7d84b03c3da21

commit f8a8b721bbc47542d98e4eaf50f7d84b03c3da21
Author: pdfium-chromium-autoroll <pdfium-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Date: Fri Jun 08 01:49:55 2018

Roll src/third_party/pdfium 5ebfd64..798b832 (7 commits)

https://pdfium.googlesource.com/pdfium.git/+log/5ebfd64..798b832


git log 5ebfd64..798b832 --date=short --no-merges --format='%ad %ae %s'
2018-06-07 rharrison@chromium.org Add expectations for xfa_node_caption.pdf
2018-06-07 rharrison@chromium.org Convert resolve_nodes.pdf into 3 test cases
2018-06-07 hnakashima@chromium.org Rename CPDF_PageObjectHolder::GetFormDict() to GetDict().
2018-06-07 tsepez@chromium.org Remove friending in CFXJSE_Context.
2018-06-07 hnakashima@chromium.org Return from GenerateContent() if m_pObjHolder->GetFormDict() is null.
2018-06-07 art-snake@yandex-team.ru Check is first page number valid in CPDF_LinearizedHeader.
2018-06-07 rharrison@chromium.org Revert "Reland "Simplify CPDF_HintsTable.""


Created with:
  gclient setdep -r src/third_party/pdfium@798b832

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:850407 , chromium:850440 
TBR=dsinclair@chromium.org

Change-Id: I61a7c7d21e28d4051f9959e05eae18c7b3bf9b5a
Reviewed-on: https://chromium-review.googlesource.com/1092050
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@{#565508}
[modify] https://crrev.com/f8a8b721bbc47542d98e4eaf50f7d84b03c3da21/DEPS

ClusterFuzz testcase 4633751804706816 is still reproducing on tip-of-tree build (trunk).

Please re-test your fix against this testcase and if the fix was incorrect or incomplete, please re-open the bug. Otherwise, ignore this notification and add ClusterFuzz-Wrong label.

ClusterFuzz has detected this issue as fixed in range 567285:567358.

Detailed report: https://clusterfuzz.com/testcase?key=4633751804706816

Fuzzer: libFuzzer_pdf_hint_table_fuzzer
Job Type: mac_libfuzzer_chrome_asan
Platform Id: mac

Crash Type: UNKNOWN READ
Crash Address: 0x0007fffffff0
Crash State:
  HintTableForFuzzing::Fuzz
  pdf_hint_table_fuzzer.cc
  start
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=565044:565142
Fixed: https://clusterfuzz.com/revisions?job=mac_libfuzzer_chrome_asan&range=567285:567358

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4633751804706816

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.

ClusterFuzz testcase 4633751804706816 is verified as fixed, so closing issue as verified.

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

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot