Unable to find actual suspect through code search and also observing no CL's under regression range, hence adding appropriate label and requesting someone from dev team to look in to this issue.

Thanks!

ClusterFuzz has detected this issue as fixed in range 587453:587454.

Detailed report: https://clusterfuzz.com/testcase?key=5107136296910848

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  bound_quad2.Y() >= edge_quad[2].Y() in box_border_painter.cc
  blink::BoxBorderPainter::ClipBorderSidePolygon
  blink::BoxBorderPainter::PaintOneBorderSide
  
Sanitizer: address (ASAN)

Fixed: https://clusterfuzz.com/revisions?job=linux_debug_chrome&range=587453:587454

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5107136296910848

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 5107136296910848 is verified as fixed, so closing issue as verified.

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