Predator and CL could not provide any possible suspects.
Using Code Search for the file, "crash_key_breakpad.cc" assigning to the concern owner who might be related.

Suspect CL: https://chromium.googlesource.com/chromium/src/+/0ac62ddadeeb52b41efe618ecfb29be1892bbff8

rsesek@ -- Could you please look into the issue, kindly re-assign if this is not related to your changes.


Thank You.

ClusterFuzz has detected this issue as fixed in range 553139:553151.

Detailed report: https://clusterfuzz.com/testcase?key=6151588409507840

Fuzzer: ochang_domfuzzer
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race WRITE 8
Crash Address: 0x7bb400001458
Crash State:
  strncpy
  google_breakpad::NonAllocatingMap<40ul, 128ul, 200ul>::SetKeyValue
  crash_reporter::internal::CrashKeyStringImpl::Set
  
Sanitizer: thread (TSAN)

Fixed: https://clusterfuzz.com/revisions?job=linux_tsan_chrome_mp&range=553139:553151

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6151588409507840

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.