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

Another XFA issue. Lowering impact to None.

ClusterFuzz has detected this issue as fixed in range 463137:463138.

Detailed report: https://clusterfuzz.com/testcase?key=5726169682149376

Fuzzer: libfuzzer_pdfium_xfa_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Bad-cast
Crash Address: 0x000004747290
Crash State:
  Bad-cast to CXFA_ContainerLayoutItem from CXFA_FFSubForm
  CXFA_LayoutPageMgr::MergePageSetContents
  CXFA_LayoutPageMgr::SyncLayoutData
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: High

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=463136:463137
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=463137:463138

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv95l1SAmMJgCubeHX2dwrD6LWlmHKbAI81oXWUO3G7HNmHYWfZ2GzbNShyhU_RMjIJfTH04AQtiKiMM5hmg3xbklWfz2yNv4Xvrjw-9cV0XAVsJH7-tf1GeeAy-myQSljD_HEoD_X7S-sZ6hbuk39k4DdNNwoUJCMNwx_6uT-LVPwWc33UuFLtFTFFg11eF3VEHcXTzkgURMMHpOOEhIVqMUTPSSA2Dtegxvy9iFPCjciFWmZktRzTyII9QXLZWws_MFkJ3hNYpptFKgm4SqwlAlwPOoDdI5b3fEn7Jj3LKb62i1arP5_4vBFsJYvQzW4spb7y8FD322zNgb3NG0GZ9O7qhn0XvrLhSA7ratLf7AY5UmE1I?testcase_id=5726169682149376


See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.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 5726169682149376 is verified as fixed, so closing issue.

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

 Issue 708975  has been merged into this issue.

Bulk-WontFixing these bugs. This was a bug on ClusterFuzz side, see bug 717534. We will start seeing new testcases auto-filed in a day or two. We can't leave these open as ClusterFuzz won't autoverify them after ClusterFuzz-Wrong label.

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

We have made a bunch of changes on ClusterFuzz side, so resetting ClusterFuzz-Wrong label.