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/+/a5d5bb89a464f812803f6b5b6a2feb9f656f52eb (Optimize ShapeResult::ComputeGlyphBounds).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

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

 Issue 871071  has been merged into this issue.

M69 Stable promotion is coming VERY soon. Your bug is labelled as Stable ReleaseBlock, pls make sure to land the fix and request a merge into the release branch ASAP. Thank you.

I'll look into this first thing tomorrow.

In the future please don't assign bugs directly to individuals without first going through the triage process as that means they don't show up in any of our tracking tools and are not subject to our SLO.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8094625da61dda77446482770c829b6e8eee875f

commit 8094625da61dda77446482770c829b6e8eee875f
Author: Emil A Eklund <eae@chromium.org>
Date: Wed Aug 08 01:25:26 2018

Revert "Optimize ShapeResult::ComputeGlyphBounds"

This reverts r579682 (commit a5d5bb89a464f812803f6b5b6a2feb9f656f52eb).
Reason for revert: Caused regression for RTL text.

Bug:  870178 , 591099
Tbr: kojii@chromium.org
Change-Id: Ic8d79c86c59d649636d065a697b11d37f029efe7
Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_layout_ng
Reviewed-on: https://chromium-review.googlesource.com/1166298
Commit-Queue: Emil A Eklund <eae@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581427}
[modify] https://crrev.com/8094625da61dda77446482770c829b6e8eee875f/third_party/blink/renderer/platform/fonts/shaping/shape_result.cc
[modify] https://crrev.com/8094625da61dda77446482770c829b6e8eee875f/third_party/blink/renderer/platform/fonts/shaping/shape_result.h
[modify] https://crrev.com/8094625da61dda77446482770c829b6e8eee875f/third_party/blink/renderer/platform/fonts/simple_font_data.cc
[modify] https://crrev.com/8094625da61dda77446482770c829b6e8eee875f/third_party/blink/renderer/platform/fonts/simple_font_data.h
[modify] https://crrev.com/8094625da61dda77446482770c829b6e8eee875f/third_party/blink/renderer/platform/fonts/skia/skia_text_metrics.cc
[modify] https://crrev.com/8094625da61dda77446482770c829b6e8eee875f/third_party/blink/renderer/platform/fonts/skia/skia_text_metrics.h

ClusterFuzz has detected this issue as fixed in range 581425:581427.

Detailed report: https://clusterfuzz.com/testcase?key=6416523649089536

Fuzzer: attekett_dom_fuzzer
Job Type: linux_asan_chrome_v8_arm
Platform Id: linux

Crash Type: Heap-buffer-overflow WRITE 4
Crash Address: 0xed6a06b0
Crash State:
  SkPaint::getTextWidths
  void blink::ShapeResult::ComputeGlyphPositions<true>
  blink::ShapeResult::InsertRun
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=579681:579682
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_v8_arm&range=581425:581427

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6416523649089536

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 6416523649089536 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 requires manual review: Reverts referenced in bugdroid comments after merge request.
Please contact the milestone owner if you have questions.
Owners: amineer@(Android), kariahda@(iOS), cindyb@(ChromeOS), govind@(Desktop)

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

+awhalley@ (Security TPM) for M69 merge review.

+inferno for comment 9, not sure if Predator is aware of component level triage processes.

Looks like both regression and revert were just in 70, so no need for 69 merge.

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