Detailed report: https://clusterfuzz.com/testcase?key=5773159407288320

Fuzzer: jsbell_serviceworker
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  CreateInitProcessReaper(&callback) in zygote_main_linux.cc
  content::ZygoteMain
  content::RunZygote
  
Sanitizer: undefined (UBSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5773159407288320

Issue filed automatically.

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

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. If the fix resolved the issue, please close the bug by marking as Fixed.