Reassigning to mstarzinger.
This is something slipping through the old validator and then crashing the asm-wasm builder:
      __f_7[a & 0]();
      __f_7();

What is our policy for errors in the old validator? Ignore? Quick-fix?

Thanks! Policy is: Assign them to me, I will ignore them in the "old validator" and verify that the "new validator" deals with them correctly.

In this particular case: The repro is actually generated out of the regression tests that I wrote for the new validator. :)

Detailed report: https://clusterfuzz.com/testcase?key=6446942476566528

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: UNKNOWN
Crash Address: 0x000000000008
Crash State:
  NULL
Sanitizer: address (ASAN)

Regressed: V8: 43658:43659

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6446942476566528


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

ClusterFuzz has detected this issue as fixed in range 45077:45078.

Detailed report: https://clusterfuzz.com/testcase?key=6446942476566528

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8
Platform Id: linux

Crash Type: UNKNOWN
Crash Address: 0x000000000008
Crash State:
  NULL
Sanitizer: address (ASAN)

Regressed: V8: 43658:43659
Fixed: V8: 45077:45078

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6446942476566528


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 has detected this issue as fixed in range 469332:469344.

Detailed report: https://clusterfuzz.com/testcase?key=6729066859462656

Fuzzer: mbarbella_js_mutation
Job Type: mac_asan_d8
Platform Id: mac

Crash Type: UNKNOWN READ
Crash Address: 0x000000000008
Crash State:
  ReturnType
  v8::internal::wasm::AsmWasmBuilderImpl::LookupOrInsertFunction
  v8::internal::wasm::AsmWasmBuilderImpl::VisitCallExpression
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_d8&range=464021:464058
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_d8&range=469332:469344

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6729066859462656


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 6446942476566528 is verified as fixed, so closing issue.

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