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/+/297ee9e2ac0fea6624373b0a17b7b78a4b08c033 ([SPv175] Clear paint property tree node change flags after painting).

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

The crash is in code for testing only. It doesn't affect official build.

Clearing security flags, since this arises from a call to a testRunner method.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/c53de6319c9387bb765f4a57a49ee09995d099f2

commit c53de6319c9387bb765f4a57a49ee09995d099f2
Author: Xianzhu Wang <wangxianzhu@chromium.org>
Date: Fri Mar 02 21:52:03 2018

[PE] Reset raster invalidator in GraphicsLayer::SetDrawsContent(false)

Bug:  813306 
Cq-Include-Trybots: master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2
Change-Id: I0d431f44cb0347d49445e749ca29d58fc8bd8024
Reviewed-on: https://chromium-review.googlesource.com/946629
Reviewed-by: Philip Rogers <pdr@chromium.org>
Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#540643}
[modify] https://crrev.com/c53de6319c9387bb765f4a57a49ee09995d099f2/third_party/WebKit/Source/platform/graphics/GraphicsLayer.cpp
[modify] https://crrev.com/c53de6319c9387bb765f4a57a49ee09995d099f2/third_party/WebKit/Source/platform/graphics/GraphicsLayerTest.cpp

ClusterFuzz has detected this issue as fixed in range 540622:540643.

Detailed report: https://clusterfuzz.com/testcase?key=6343551018074112

Fuzzer: inferno_twister
Job Type: mac_asan_content_shell
Platform Id: mac

Crash Type: Heap-use-after-free READ 8
Crash Address: 0x60f00008b0f0
Crash State:
  blink::CompositedLayerRasterInvalidator::SetTracksRasterInvalidations
  blink::GraphicsLayer::UpdateTrackingRasterInvalidations
  blink::UpdateTrackingRasterInvalidationsRecursive
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_content_shell&range=537349:537412
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_content_shell&range=540622:540643

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6343551018074112

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 6343551018074112 is verified as fixed, so closing issue as verified.

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