Unable to find the exact culprit, hence looping https://chromium.googlesource.com/chromium/src/+/master/third_party/WebKit/Source/wtf/text/OWNERS.

drott@, could you please take a look?

Thank you!

As far as I can tell from the stack traces, this is not a problem with Strings in itself, but rather something about a WorkerOrWorkletScriptController thread manages their lifetime. Possibly dcf3826071f4aa88ab, reassiging to dgozman.

ClusterFuzz has detected this issue as fixed in range 397130:397162.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6293988084809728

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: Data race READ 4
Crash Address: 0x7d1000024940
Crash State:
  blink::WorkerOrWorkletScriptController::ExecutionState::~ExecutionState
  blink::WorkerOrWorkletScriptController::evaluate
  blink::WorkerThread::initialize
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=396083:396125
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=397130:397162

Minimized Testcase (1.32 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94gQCZHIatBuvW68LZLnt6WlMDpUVVmx9kc3phXaoLjriALUDkqKFQ3lNiUrvZNOPvlpMHoKd5y67tv5EUP_f-tAIu7ARqb3GtaqRg-OP1-fA-8eFLTf6t8OCGvLv89F1KLRRs2KR9ZPgOQ2RINpr3v2Am8Rg

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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