Predator and CL did not find any possible suspects.
Using Code Search for the file, "remembered-set.h" assigning to the concern owner.
Suspecting Commit#
https://chromium.googlesource.com/v8/v8.git/+/dcf46a67c0b2fb96b86f991edfd21bcb061f5054

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

As noted in my CL description, I only changed comments and no code.

Reassigning to v8 clusterfuzz sheriff.

ClusterFuzz has detected this issue as fixed in range 458403:458424.

Detailed report: https://clusterfuzz.com/testcase?key=6191273729064960

Fuzzer: afl_v8_serialized_script_value_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  AllocateSlotSet
  v8::internal::MemoryChunk::AllocateOldToNewSlots
  AllocateSlotSet
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=424417:424467
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=458403:458424

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv95bt2jMQmL2bn_Du7p5u-u-Zj1X8qIyUH-RfejsYpkQmA5WkZsbHt5aNDxUliOaqiFQgiuHIrtFzOEQrjVFth66u1CJj_CXih8Opf72jGQUGQPl5MSSCAl2Da6Jj3XJyh-dkm2zLk-hUnkcERreH_8mTkCwolKEx_EaQ6lttn8lRkoLZCNyxy80cHL-P-uQGneWS_mVr_1hXAVSuOPl4GUoHadZblnphLDTNZSDpeariE6f6WDn360Zsvki_X-MwvPFv1CXm_fvHvt-r370Yss2DwxSkuFFyFYkibocDoPYbU5hQbG0hXNkqX6lWuKLna_ZCS76GXLsPhWH6mXPuwSNUWObqOz-xvqVXkj4YoAUftmH8lve8xZjYoXisEw03qhawD6TIyLrxHh06NfChrygGg7cxw?testcase_id=6191273729064960


See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md 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 6191273729064960 is verified as fixed, so closing issue.

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