Find it did not provide any possible suspects.
Assigning to the concern owner using Code Search for the file "global-handles.cc"

Suspecting CL# 
https://chromium.googlesource.com/v8/v8/+/566c825d4a7760351862b8bcfd59303442c1d635

@ulan -- Could you please look into the issue, kindly re-assign if this is not related to your change.
Thank You.

ClusterFuzz has detected this issue as fixed in range 433593:433756.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6396699259174912

Fuzzer: lcamtuf_cross_fuzz
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  MakeWeak
  v8::internal::GlobalHandles::MakeWeak
  SetWeak
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_lsan_chrome_mp&range=433407:433413
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_lsan_chrome_mp&range=433593:433756

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv94OCC57_5tG-Z4Jr47B3ulUAJl_vWtrnirshUsDkc-BjNZ-R87kaacPDBMJRhP42OtosaWtQZvLHMf_tPO_CIBdTxmJuj-a8N3sxoogDYFfDmQiMK8Jid5QQuvVpM1y9v_SN-HJjIjMzj7R5TkhpeWsRgJlE0cWq2f5WInZ4GytTrfEVek?testcase_id=6396699259174912


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.

 Issue 668781  has been merged into this issue.