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

Guessing https://chromium.googlesource.com/chromium/src/+/1cb584a78df79b205fa7de04beb28c6f848bde33

robhogan, could you please take a look and either confirm or rule-out your CL?  Thanks!

ClusterFuzz has detected this issue as fixed in range 494391:494437.

Detailed report: https://clusterfuzz.com/testcase?key=5063969139326976

Fuzzer: marty_html_twiddler
Job Type: windows_asan_chrome
Platform Id: windows

Crash Type: Heap-use-after-free READ 4
Crash Address: 0x0772fcb4
Crash State:
  blink::InlineFlowBox::RemoveChild
  blink::InlineBox::Remove
  blink::LayoutBox::DeleteLineBoxWrapper
  
Sanitizer: address (ASAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=490630:490719
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=494391:494437

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5063969139326976

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.

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