This crash occurs very frequently on mac and windows platforms and is likely preventing the fuzzer marty_html_twiddler from making much progress. Fixing this will allow more bugs to be found.

Marking this bug as a blocker for next Beta release.

If this is incorrect, please add ClusterFuzz-Wrong label and remove the ReleaseBlock-Beta label.

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/+/cd3ebc4c69d7c01770f37f34aad623aa4ab2b128 (content_shell: add --run-web-tests to replace --run-layout-test.).

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.

Assign eae@ for triage.

ClusterFuzz has detected this issue as fixed in range 562173:562175.

Detailed report: https://clusterfuzz.com/testcase?key=5921668984471552

Fuzzer: marty_html_twiddler
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Heap-use-after-free READ 8
Crash Address: 0x12b00203c900
Crash State:
  blink::LayoutBlockFlow::RemoveChild
  blink::LayoutObject::WillBeDestroyed
  blink::LayoutBoxModelObject::WillBeDestroyed
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=558997:558998
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=562173:562175

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5921668984471552

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 5921668984471552 is verified as fixed, so closing issue as verified.

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

Looks like this was fixed by: https://chromium.googlesource.com/chromium/src.git/+/2ff81cbf1dab9e224f3252be810c820c480e4922

Requesting merge of that (from  issue 846449 ) to 68

Not sure which CL needs to be merged here. 

Your change meets the bar and is auto-approved for M68. Please go ahead and merge the CL to branch 3440 manually. Please contact milestone owner if you have questions.
Owners: cmasso@(Android), kariahda@(iOS), bhthompson@(ChromeOS), abdulsyed@(Desktop)

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

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

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

We don't need to merge  https://chromium.googlesource.com/chromium/src.git/+/2ff81cbf1dab9e224f3252be810c820c480e4922 to M68.
See https://bugs.chromium.org/p/chromium/issues/detail?id=846449#c13.

Thanks hayato@!

This issue has been approved for a merge. Please merge the fix to any appropriate branches as soon as possible!

If all merges have been completed, please remove any remaining Merge-Approved labels from this issue.

Thanks for your time! To disable nags, add the Disable-Nags label.

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

Pls merge you change to M68 branch 3440 ASAP so we can pick it up for this week Beta release. Merge has to happen latest by 1:00 PM PT tomorrow, Tuesday (06/19), so we can pick it up for Wednesday Beta release.

Ping - has this been merged to 68?

Per #14, no merge required. Removing merge-approved label. 

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