This issue looks similar to  bug 843908 , hence assigning to the same owner for more updates.

lukasza@ Could you please take a look in to this issue?

Thanks!

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

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

ClusterFuzz has detected this issue as fixed in range 569602:569603.

Detailed report: https://clusterfuzz.com/testcase?key=5685313679392768

Fuzzer: inferno_layout_test_fuzzer
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  test_runner::MockWebSpeechRecognizer::PostRunTaskFromQueue
  base::debug::TaskAnnotator::RunTask
  base::sequence_manager::internal::ThreadControllerImpl::DoWork
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=531839:531841
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=569602:569603

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5685313679392768

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 5685313679392768 is verified as fixed, so closing issue as verified.

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