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

Author: Mike Reed
Project: chromium-skia
Changelist: https://skia.googlesource.com/skia.git/+/918e144408ba218df919528f8b48c544f4767883
Time: Mon Jan 23 11:39:45 2017 -0500
Lines 31 of file SkBigPicture.cpp which potentially caused crash are changed in this cl (frame #2, "SkBigPicture::playback"). 

File SkCanvas.cpp is changed in this cl (and is part of stack frame #0, "SkCanvas::onGetLocalClipBounds")
Minimum distance from crash line to modified line: 0. (file: SkBigPicture.cpp, crashed on: 31, modified: 31).

@reed -- Could you please look into the issue, kindly re-assign if this is related to your changes.
Thank You.

ClusterFuzz has detected this issue as fixed in range 468540:468550.

Detailed report: https://clusterfuzz.com/testcase?key=5157336462393344

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  SkCanvas::onGetLocalClipBounds
  getLocalClipBounds
  SkBigPicture::playback
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=445391:445491
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=468540:468550

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5157336462393344


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 5157336462393344 is verified as fixed, so closing issue.

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