Fixed by this cl: Fixed by this cl: https://chromium-review.googlesource.com/527033

ClusterFuzz has detected this issue as fixed in range 477642:477679.

Detailed report: https://clusterfuzz.com/testcase?key=4652912340107264

Fuzzer: mbarbella_js_mutation
Job Type: linux_ubsan_vptr_d8
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x7f3b7e689dd0
Crash State:
  Bad-cast to v8::internal::compiler::Operator1<v8::internal::compiler::FrameStateInfo, v8::internal::compiler::OpEqualTo<v8::internal::compiler::FrameStateInfo>, v8::internal::compiler::OpHash<v8::internal::compiler::FrameStateInfo> > from v8::internal::compiler::MachineOperatorGlobalCache::LoadAnyTaggedOperator
  OpParameter<v8::internal::compiler::FrameStateInfo>
  OpParameter<v8::internal::compiler::FrameStateInfo>
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=477266:477283
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_d8&range=477642:477679

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4652912340107264


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.

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