This might be suspected Changelist: https://chromium.googlesource.com/skia.git/+/55888e44171ffd48b591d19256884a969fe4da17

caryclark@ could you please look into this. please feel free to re -assigned if needed. Thank you 

The following revision refers to this bug:
  https://skia.googlesource.com/skia.git/+/bb51f4a3a78ecb35cc4da24d50a440f58a0f8899

commit bb51f4a3a78ecb35cc4da24d50a440f58a0f8899
Author: caryclark <caryclark@google.com>
Date: Tue Aug 23 14:38:48 2016

fix pathops fuzz

Extreme cubics may split so that one half is a point.
Discard this rather than generating a degenerate line.

TBR=reed@google.com
BUG= 640025 
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2276503002

Review-Url: https://codereview.chromium.org/2276503002

[modify] https://crrev.com/bb51f4a3a78ecb35cc4da24d50a440f58a0f8899/src/pathops/SkOpContour.h
[modify] https://crrev.com/bb51f4a3a78ecb35cc4da24d50a440f58a0f8899/src/pathops/SkOpEdgeBuilder.cpp
[modify] https://crrev.com/bb51f4a3a78ecb35cc4da24d50a440f58a0f8899/src/pathops/SkOpSegment.h
[modify] https://crrev.com/bb51f4a3a78ecb35cc4da24d50a440f58a0f8899/tests/PathOpsOpTest.cpp

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/4773dca03eaa9bc24ad19c57afe70e86134a4566

commit 4773dca03eaa9bc24ad19c57afe70e86134a4566
Author: skia-deps-roller <skia-deps-roller@chromium.org>
Date: Tue Aug 23 17:40:00 2016

Roll src/third_party/skia/ 08197b226..afdc177e7 (7 commits).

https://chromium.googlesource.com/skia.git/+log/08197b22656c..afdc177e77a4

$ git log 08197b226..afdc177e7 --date=short --no-merges --format='%ad %ae %s'
2016-08-23 halcanary SkPDF: PDFDevice cleanup.
2016-08-23 mtklein f16<->f32 ftz is an optional thing for speed.
2016-08-23 vjiaoblack Moving SkBlurImageFilter into core
2016-08-23 caryclark fix pathops fuzz
2016-08-23 mtklein GN: make libwebp an optional dependency
2016-08-23 csmartdalton Reduce window rectangles cap to 8
2016-08-23 robertphillips Cleanup use of legacy SkSurface creation methods a bit

BUG= 640025 

CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel
TBR=bungeman@google.com

Review-Url: https://codereview.chromium.org/2274603002
Cr-Commit-Position: refs/heads/master@{#413778}

[modify] https://crrev.com/4773dca03eaa9bc24ad19c57afe70e86134a4566/DEPS

ClusterFuzz has detected this issue as fixed in range 414042:414068.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5728363887198208

Fuzzer: libfuzzer_skia_pathop_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: UNKNOWN READ
Crash Address: 0x000000000018
Crash State:
  addOpp
  AddIntersectTs
  OpDebug
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=405990:406128
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=414042:414068

Minimized Testcase (0.47 Kb): https://cluster-fuzz.appspot.com/download/AMIfv954stdVqu3YrsgERQiw4vwtkWODgxPtstyFCvg7nauflpm420JcDX4tP84Bi87bPnJLCIHyFRPegPtBiGMPHFlD2boYQ6Si3AyfCw1VsB6INisqCtCTm0eUxb_tkS5BMhrNHvV-XsQeHA4ryNVItWcnVM3vNw?testcase_id=5728363887198208

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.

Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label.

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