Predator and CL did not provide any possible suspects.
Using Code Search for the file, "ShapeResult.h" assigning to the concern owner.
Suspecting Commit#
https://chromium.googlesource.com/chromium/src/+/9f5c41f795feab1c14e00638af29bcece54f05d8

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

This test create really deep tree, it can stack overflow anywhere with this depth. The change is not relevant.

I believe we have won't fixed bugs for deep layout tree, but can't find it.

ClusterFuzz has detected this issue as fixed in range 484291:484306.

Detailed report: https://clusterfuzz.com/testcase?key=6401206586179584

Fuzzer: bj_broddelwerk
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Stack-overflow
Crash Address: 0x7fff5e37ff88
Crash State:
  blink::ShapeResult::Create
  blink::HarfBuzzShaper::Shape
  blink::HarfBuzzShaper::Shape
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=483420:483469
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=484291:484306

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6401206586179584


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.