Not sure if this is a real bug in v8... 

ClusterFuzz has detected this issue as fixed in range 420614:420702.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6007402120085504

Fuzzer: libfuzzer_v8_wasm_code_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Fatal error
Crash Address: 
Crash State:
  v8::Isolate::DisposeSignalHandler
  libpthread.so.0
  v8::base::OS::Abort
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=418965:419032
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_msan&range=420614:420702

Minimized Testcase (0.00 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96MQaM-J8ThVjboQ2z5sXCOQb1SStojtpteaF1tX8UYqZGq-elRqSsw6Sm4olwQUvD6jdpewEKpf6WWgRlc4aoAMD7fTK3CE7szOsyL0fktRiyNMSoNOQScW3-tihR8kRgG8_LKgvVI5h4kg9XPDQsnNYoaRg?testcase_id=6007402120085504

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md 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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