Unable to find actual suspect through code search and also observing no CL's under regression range, hence adding appropriate label and requesting someone from dev team to look in to this issue.

Thanks!

ClusterFuzz has detected this issue as fixed in range 614104:614110.

Detailed report: https://clusterfuzz.com/testcase?key=4521096081309696

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference WRITE
Crash Address: 0x000000000000
Crash State:
  NULL
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=599507:599508
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=614104:614110

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4521096081309696

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.

ClusterFuzz testcase 4521096081309696 is verified as fixed, so closing issue as verified.

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