Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6281327990276096

Fuzzer: ifratric-browserfuzzer-v3
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: UNKNOWN
Crash Address: 0x0000009f
Crash State:
  WTF::HashTable<blink::TraceWrapperMember<blink::MutationObserverRegistration>,bl
  WTF::HashSet<blink::TraceWrapperMember<blink::MutationObserverRegistration>,WTF:
  blink::RuleFeatureSet::add
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=windows_syzyasan_chrome&range=441084:441086

Minimized Testcase (2.25 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94K7HaKHrKEehPAL4FPeDR4y-JblbYIYSMFeoKjy2nUhagR2ofM8MbB6-gvK-gXr9ydsMcAXmYCtYvYPP1EZKmxxBFqj8Ej1B4yHgUr6UI5D59Cm4ubHvonv7SeB4Lq9LcOsJ4rZIU1w1H1qGjVixqQ9iodPXepzjppOhrRKwnSWnNYsIweu15QuzliOn5HEit7fA-1Jc0WBW7gDi1hKmeZZArbBm3xMfQkPH05nUR_qWbO_l6vAwls0R11bS1Wp4vvND3jDTy9xHuSqvYtQYkKqJlL0OI8E3ejCa8FpsV6h7KsWFthn7QKzheB95jm3RIJEO4hGO5Nj8c2eVFN2LeaTHmsiM2vF7qQFqF1VbVE77wgW9c?testcase_id=6281327990276096

Issue filed automatically.

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