This issue is a security regression. If you are not able to fix this quickly, please revert the change that introduced it.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

ClusterFuzz has detected this issue as fixed in range 447848:447948.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6640561315643392

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

Crash Type: Bad-cast
Crash Address: 0x000000000000
Crash State:
  Bad-cast to blink::BasePage from invalid vptr
  blink::Document::updateStyleAndLayoutTree
  blink::shouldRepaintCaret
  
Sanitizer: cfi (CFI)

Recommended Security Severity: High

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_cfi_chrome&range=447243:447310
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_cfi_chrome&range=447848:447948

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv95wu6UggyJsOulD8ZyExAmFagxxABGeCkOL0pKB2sY5mdsGqbxtZWvi72RoZ15owdIyxRvrlzx7STXDfOQgmUKJkR3vTDcK9eat_TLnJ_IXT5n6RLLRP9Rf5KS4tsx40MkuYfFU89vVCttuZXo3DplzRYTrSeXhYUU_Cx-MvxLT03THe9XyU9sEbyrs4Sp24kQaLahR4gmlsXtI7vqIRRosbfJ1itHhNmeVd49vXgNEliW0ezBd4qfofcHLwmo0aw4deD9rSYEitw4TtzWMKmjFrjWPHiTbM9nBOBY-Nz-uVhNDbtbQkGSp0nYbmv5-epmE0abviw84e4hKYjyVQh5eTxF2ik7OooTkMwctH9eUJRHUmhk?testcase_id=6640561315643392


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 6640561315643392 is verified as fixed, so closing issue.

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

This bug has been closed for more than 14 weeks. Removing security view restrictions.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot