Suspected CL could be

https://chromium.googlesource.com/chromium/src/+/fe075c81bffa961dfbc1bccc2e47501f45b88484%5E%21/chrome/browser/browser_process_impl.cc
Last updated by dgn@ weeks ago , please have a look and reassign if needed.

Thank you.

I didn't manage to get a repro, both with the linked build and with a master build. We got similar crash reports from tester bots, so I'm going to dupe this but with that other issue.

ClusterFuzz has detected this issue as fixed in range 403432:403437.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4510187977441280

Fuzzer: meacer_extension_apis
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  false in browser_process_impl.cc
  BrowserProcessImpl::Pin
  KeepAliveRegistry::OnKeepAliveStateChanged
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_vptr_chrome&range=388178:388349
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_vptr_chrome&range=403432:403437

Minimized Testcase (7.29 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96XSV56QoqknBHcQ9kfqtvj-78dD_GDjCp9Wa28cXoscbPfNNZaIRv7_SMhx2U0YlEKTLcJ4wLC6xw-460p1ItkPEeRcursVlKtlrmWwcfrlgXkeobVuKXWskHWwCu4SOf-cWP16gyBZyA6zojCf9KRPnRLcg?testcase_id=4510187977441280

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

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