ClusterFuzz has detected this issue as fixed in range 442831:443393.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4702007958175744

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000000
Crash State:
  blink::hasEditableLevel
  blink::CompositeEditCommand::insertNodeBefore
  blink::InsertTextCommand::insertTab
  
Sanitizer: address (ASAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=410916:411126
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_mp&range=442831:443393

Minimized Testcase (0.35 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95Pd1Cv5FfKHVWBFgZM45z6vuehj6sAEsMJZTc72AsoiwhR4ybFdVTl5PI6em8O8O0qkGO8aoYrNhnflm8s0jLdq4Xb0ajA9cZa_I7KUznWHudSUYa3jnsLLgDdF9hBnTsdzef8cUHTlTmL7G3CGvWSq-1LIg?testcase_id=4702007958175744

Additional requirements: Requires Gestures

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 4702007958175744 is verified as fixed, so closing issue.

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