This issue looks similar to  bug 822592 , hence assigning to the same dev for more updates.

ahaas@ Could you please take a look in to this issue?

Thanks!

ClusterFuzz has detected this issue as fixed in range 574884:574885.

Detailed report: https://clusterfuzz.com/testcase?key=5645741784301568

Fuzzer: libFuzzer_v8_wasm_code_fuzzer
Job Type: libfuzzer_chrome_msan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  v8_wasm_code_fuzzer
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=529682:529689
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_msan&range=574884:574885

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5645741784301568

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

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

ClusterFuzz testcase 5645741784301568 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.