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

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Punting to dsinclair for pdfium triage, please

May be related to the FreeType roll?

This is caused by fbec38011870753cffb3cb2ff98aa0c00c63b25c. drott@ could you take a look at this?

Thanks for investigating, I can try to take a look, but this is probably something for behdad@.

drott: Uh oh! This issue still open and hasn't been updated in the last 14 days. This is a serious vulnerability, and we want to ensure that there's progress. Could you please leave an update with the current status and any potential blockers?

If you're not the right owner for this issue, could you please remove yourself as soon as possible or help us find the right one?

If the issue is fixed or you can't reproduce it, please close the bug. If you've started working on a fix, please set the status to Started.

Thanks for your time! To disable nags, add the Disable-Nags label.

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

ClusterFuzz has detected this issue as fixed in range 483358:483512.

Detailed report: https://clusterfuzz.com/testcase?key=5841369016041472

Fuzzer: libFuzzer_pdfium_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Incorrect-function-pointer-type
Crash Address: 
Crash State:
  hb_font_destroy
  af_face_globals_free
  destroy_face
  
Sanitizer: undefined (UBSAN)

Recommended Security Severity: Medium

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=472409:472435
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=483358:483512

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5841369016041472


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 5841369016041472 is verified as fixed, so closing issue.

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

FreeType roll in https://chromium-review.googlesource.com/c/550379/

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