As discussed, moving to machenbach@ for further triage.

ClusterFuzz has detected this issue as fixed in range 42568:42569.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6247038728798208

Fuzzer: foozzie_js_mutation
Job Type: foozzie_ignition_staging
Platform Id: linux

Crash Type: V8 correctness failure
Crash Address: 
Crash State:
  configs: x64,fullcode:x64,ignition_staging
  sources: ea3
  
Sanitizer: address (ASAN)

Regressed: V8: 42370:42371
Fixed: V8: 42568:42569

Minimized Testcase (0.24 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv95CndsFQ41f-Gh8Pouc-iFRB8KRdb-h3tFib3jb7d4tp6u_mIjIZCsm3unzXzl5CS4Ve5UuvLjbju67sgmx_2wpKwXHOFMaOspLkCQS275ovMsmoGmAEgY0MoJqwGBC8GAM3Epdef7F5fsDMJYaXQb4yZ0iiryoiAIiJRC9P-pGmoQYnXSPn196_nxf5eY327hfU9PpymG3Bt3dF8Ao769VQGgA4jzCN_Jz7g1gKRUvP0wBzBatuMxKH96g_xOMuRr9Ia_x5PFOo86hjHiJw-ywoAjZnBd4Gt4vK57PNPObFba1Nconyrra36A6KO2CKdAhm42TOIyfEO9A0OxrlgieD0T4YRzuVkEqotviqwX3FhyphpE?testcase_id=6247038728798208
print("v8-foozzie source: /v8/test/mjsunit/regress/regress-618608.js");
__f_90();
( {
})();
function __f_90(stdlib, __v_65) {
  "use asm";
  var __v_63 = __v_65.x | 0, __v_62 = __v_65.y | 0;
  function __f_62() {
  }
  return {__f_109: __f_62};
}


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.

ClusterFuzz testcase 6247038728798208 is verified as fixed, so closing issue.

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