Predator and CL could not provide any possible suspects.
Using Code Search for the file, "checked_math.h" assigning to the concern owner who might be related.

Suspecting Commit#
https://chromium.googlesource.com/chromium/src/+/4ad909a931bd1f3e2b1a9861b251096c7b8f9b71

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

ClusterFuzz has detected this issue as fixed in range 498140:498364.

Detailed report: https://clusterfuzz.com/testcase?key=4764215218012160

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: Ill
Crash Address: 0x7fb3bab0d2d8
Crash State:
  HandleFailure<unsigned
  ValueOrDie<unsigned
  sandbox::ResourceLimits::AdjustCurrent
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=495357:495412
Fixed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=498140:498364

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4764215218012160

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 4764215218012160 is verified as fixed, so closing issue as verified.

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