Regression range suggests https://pdfium.googlesource.com/pdfium/+/93bb725b62f9779534c9444c1e1319fe8c28912e. PTAL?

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

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

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

This is an XFA issue which is not enabled on any branch of Chrome.

I believe this should be fixed with https://pdfium-review.googlesource.com/c/pdfium/+/21090

ClusterFuzz has detected this issue as fixed in range 523862:523908.

Detailed report: https://clusterfuzz.com/testcase?key=5610521800998912

Fuzzer: libFuzzer_pdfium_xfa_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x00000626c890
Crash State:
  Bad-cast to CJX_Node from CJX_Content
  CXFA_Node::JSNode
  CJX_Node::TryContent
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=522654:522683
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=523862:523908

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5610521800998912

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md 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 5610521800998912 is verified as fixed, so closing issue as verified.

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