ClusterFuzz has detected this issue as fixed in range 445725:445853.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4788188662202368

Fuzzer: marty_html_twiddler
Job Type: linux_debug_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  flippedBlocksContainer == locationContainer() in LayoutBox.cpp
  blink::LayoutBox::physicalLocation
  blink::LayoutBox::mapToVisualRectInAncestorSpace
  
Sanitizer: address (ASAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_chrome&range=422899:423265
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_chrome&range=445725:445853

Minimized Testcase (0.52 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96OM1lUppjgyPP5xCxc2IrmUDzW05FzH9CpKtvBYiQLD3YsLLoe0dP5QKLhPCfXNrpdlLJfF6e79MVnZ0XeKkdojQLL5o6QwISRi0jiTenFu0qvvFHsjA2u8PY0U48P6MG8qNuQLVAgZR6yXef4FzwpkWxHGaDNrOC2T2LLZvQQ2bR7hyRZ2NDEZFUHYghoCGRkB0Ci9Ksq1SvtVFEzbhy2KtMu_nisnJPMx55MEL6gsRRnI22dukDXtHYHNe6wKUfEDFDuCa9wcBKjLw2ZNnHAS6Pj7cFBtgzSbcqVdVsVWNO2LZNdjTOqw4zI2hiOdyRsEiE0IxRd974DQsXGlASPWeXbrBZTo8CCQsUp2BHpnwkp2S4?testcase_id=4788188662202368

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.

ClusterFuzz testcase 4788188662202368 is verified as fixed, so closing issue.

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