ClusterFuzz has detected this issue as fixed in range 472221:472282.

Detailed report: https://clusterfuzz.com/testcase?key=5187078077022208

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

Crash Type: CHECK failure
Crash Address: 
Crash State:
  IsInTreeScope() in Node.h
  blink::Node::ContainingTreeScope
  blink::ElementRuleCollector::CollectMatchingRules
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=472186:472211
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=472221:472282

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5187078077022208


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 5187078077022208 is verified as fixed, so closing issue.

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