ClusterFuzz has detected this issue as fixed in range 535905:535934.

Detailed report: https://clusterfuzz.com/testcase?key=4769847234527232

Fuzzer: attekett_surku_fuzzer
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x1e6f7fe19e90
Crash State:
  Bad-cast to blink::GarbageCollectedMixin from invalid vptr
  blink::ObjectAliveTrait<blink::ActiveScriptWrappableBase, true>::IsHeapObjectAlive
  bool WTF::HashTraits<blink::WeakMember<blink::ActiveScriptWrappableBase> >::TraceInCollection<blink::Visitor*>
  
Sanitizer: cfi (CFI)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=428749:428854
Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=535905:535934

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4769847234527232

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.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot