From findit tool:
Author: thestig
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/4997b22f84307521a62838f874928bf56cd3423c
Time: Tue Jun 07 10:46:22 2016 -0700
Lines 1824, 2113-2114 of file fx_codec_progress.cpp which potentially caused crash are changed in this cl (frame #7, "CCodec_ProgressiveDecoder::Resample"; frame #8, "CCodec_ProgressiveDecoder::ContinueDecode").

thestig@, could you please take a look and reassign if it is not related your changes.

ClusterFuzz has detected this issue as fixed in range 436398:436475.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5907821570031616

Fuzzer: libfuzzer_pdf_codec_jpeg_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: Timeout
Crash Address: 
Crash State:
  pdf_codec_jpeg_fuzzer
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=398395:399155
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=436398:436475

Minimized Testcase (0.14 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95czAFqb7tyqtI1KvpICzxqEALpigphOIun4MWNh0OZo-wPKXkccBM3qQaCr5tRe6dVDRj0WIT3Z6_A--d15w5LcnEjJaGOkuK2Y8OY70FV0zQ8Vkuf7H4be8CrjW4HUCVrA-SSDWTe-1MjeW8Xt95LMv3ITg?testcase_id=5907821570031616

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 5907821570031616 is verified as fixed, so closing issue.

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