This issue looks similar to Bug ID -- 761627. So, assigning to the concern owner.

@npm -- Could you please look into it issue, kindly re-assign if this not related your changes.
Thank You.

ClusterFuzz has detected this issue as fixed in range 500658:500741.

Detailed report: https://clusterfuzz.com/testcase?key=5386541966032896

Fuzzer: libFuzzer_pdf_jpx_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Out-of-memory (exceeds 2048 MB)
Crash Address: 
Crash State:
  pdf_jpx_fuzzer
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=499756:499820
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=500658:500741

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5386541966032896

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 5386541966032896 is verified as fixed, so closing issue as verified.

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