Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/596e6b3281a8cc2c4b646553e4cde169a29a1d1d (Cleanup plugin element frames when the layout tree is detached).

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.

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

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Most probably duplicate of 846708.

ClusterFuzz has detected this issue as fixed in range 563899:563909.

Detailed report: https://clusterfuzz.com/testcase?key=5252971634622464

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::SelectionEditor::NeedsUpdateVisibleSelection
  blink::SelectionEditor::UpdateCachedVisibleSelectionIfNeeded
  blink::SelectionEditor::ComputeVisibleSelectionInDOMTree
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=561767:561768
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=563899:563909

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5252971634622464

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.