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=6672312532467712

Fuzzer: inferno_twister
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::LocalFrame::spellChecker
  blink::HTMLElement::attributeChanged
  
Sanitizer: cfi (CFI)

Recommended Security Severity: High

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_cfi_chrome&range=447707:447735
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_cfi_chrome&range=447848:447948

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv94Iw3vL0_1Xl7BaCAmlcHUFxOge6BA8mdj44dIJooAtwJdT6D_g49EjXLUoLfIpEdVk8GXcEkPn7Ms0m1YuGNMseZD3_DCti_pjxhVatlMsZzvuRhMAidkA0_uC84x2Iq4qhWqh5Mxc3E7lU3-r6Z-nmEwORO4SI_I2p3w-Wpu2s02geS_-RrTFyPykYPUhCcm5peWfZm73B8dY9Q33ehxkGVshmiaTz5Jy2Wgk5cS1x00M_u5DZYTP-UaPG13S-7ZJQ0ts1X1ORtiQnx7vnNpiunZEytt4WRBzHH0ehsk8euURFY90YH-4L5PGVclecYipyQvn5V6r1MfunMd4Pq7VPPfVY-dBD2lHF5pXKwRcMbPqMfA?testcase_id=6672312532467712


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 6672312532467712 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