Assigning to the concern owner from Predator results --
The result is a list of CLs that change the crashed files. 

Author: thestig
Project: chromium-pdfium
Changelist: https://pdfium.googlesource.com/pdfium.git/+/342de0bef86b4a7be5599a02a6ff4a6e07328b11
Time: Thu Jun 09 15:33:10 2016 -0700
Lines 2647 of file tif_getimage.c which potentially caused crash are changed in this cl (frame #2, "PickContigCase").
Minimum distance from crash line to modified line: 0. (file: tif_getimage.c, crashed on: 2647, modified: 2647).

@thestig -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

ClusterFuzz has detected this issue as fixed in range 453271:453317.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6582995097223168

Fuzzer: libfuzzer_pdf_codec_tiff_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  TIFFYCbCrToRGBInit
  initYCbCrConversion
  PickContigCase
  
Sanitizer: undefined (UBSAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=398351:399229
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_ubsan&range=453271:453317

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv956lDjp35oFXC86HDGfBbDJKbAP19b-N7VfPkpgvbF3TNTEHmVyDcgOJql-x-Lvrt_T6sXA0jjCgpJ2XwPZdWrqAhnzIAwmV98nbm3byVmHIDFaL2QLPBzHfxqSMma-JA3pXc7nmZR0UbIvHEfY0Zyo8LH4PaPeFLHE-hq6m7TBvXIkNhwuW7USegf8Bq_TQhOu-rVzWpGQs_Fuk86AJQ8BdfDmslsAaCGeOJs3NVJ6vOAGXpqYHxEai5GE-oOHmGlEHfRAs10IXKbDy-psnhd7sm_2_HHnX3Rr-s8qaTg0YnV2m1zslpmM9TflOLMTHs3q_VKUVRm5CZv3mqkbS8M5lEHkThHCYVI8n5Z_HKcznxvobaE?testcase_id=6582995097223168


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 6582995097223168 is verified as fixed, so closing issue.

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