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

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

Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/9d9e0630b91da3dfa6ad49a29a5dd97d11f6baca (PDF Viewer: more precise bookmark navigation).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

Horray for fuzzers! https://chromium-review.googlesource.com/706300

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

Testcase 5020363204591616 is a top crash on ClusterFuzz for mac platform. Please prioritize fixing this crash.

Marking this crash as a Beta release blocker.

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

M63 is branching on this Thursday (10/12) and M63 beta promotion is coming very soon. Your bug is labelled as Beta ReleaseBlock, pls make sure to land the fix ASAP. Thank you.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/686a540a548894aaff894d58a4694d0ef22aa192

commit 686a540a548894aaff894d58a4694d0ef22aa192
Author: Lei Zhang <thestig@chromium.org>
Date: Tue Oct 10 22:20:06 2017

Check page number values in PDFiumEngine::TraverseBookmarks().

This is a regression in r507184.

BUG= 772615 

Change-Id: I90a8f913544051a8f1f4eef03e96138a5e624c21
Reviewed-on: https://chromium-review.googlesource.com/706300
Commit-Queue: Chris Palmer <palmer@chromium.org>
Reviewed-by: Chris Palmer <palmer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#507795}
[modify] https://crrev.com/686a540a548894aaff894d58a4694d0ef22aa192/pdf/pdfium/pdfium_engine.cc

ClusterFuzz has detected this issue as fixed in range 507774:507842.

Detailed report: https://clusterfuzz.com/testcase?key=5020363204591616

Fuzzer: ochang_neurofuzz_mutator
Job Type: windows_asan_chrome
Platform Id: windows

Crash Type: Heap-buffer-overflow READ 4
Crash Address: 0x0701196c
Crash State:
  chrome_pdf::PDFiumEngine::TraverseBookmarks
  chrome_pdf::PDFiumEngine::TraverseBookmarks
  chrome_pdf::PDFiumEngine::TraverseBookmarks
  
Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=507165:507202
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=507774:507842

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5020363204591616

See https://github.com/google/clusterfuzz-tools 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 5020363204591616 is verified as fixed, so closing issue as verified.

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

 Issue 772616  has been merged into this 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