Unable to provide possible suspect using Predator, CL and Code Search.
Could someone please look into the issue.

Thank You...

Isn't this the same issue than #786781 ? I'll investigate it in any case.

I think it's indeed duplicated, so I'll close this one now.

ClusterFuzz has detected this issue as fixed in range 517965:518052.

Detailed report: https://clusterfuzz.com/testcase?key=6168165020336128

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  begin
  blink::BaselineContext::FindCompatibleSharedGroup
  blink::BaselineContext::GetSharedGroup
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=514498:517698
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=517965:518052

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6168165020336128

Additional requirements: Requires HTTP

See https://github.com/google/clusterfuzz-tools for more information.

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