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

Author: lukasza
Project: chromium
Changelist: https://chromium.googlesource.com/chromium/src/+/9d858647530db2c22e1267e443034d23f2e602d9
Time: Thu Dec 08 21:52:12 2016
Lines 37 of file StylePath.cpp which potentially caused crash are changed in this cl (frame #5, "blink::StylePath::path").
Minimum distance from crash line to modified line: 0. (file: StylePath.cpp, crashed on: 37, modified: 37).

@lukasza -- 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 440242:440280.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5923665142349824

Fuzzer: inferno_webbot
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Float-cast-overflow
Crash Address: 
Crash State:
  SkPath::arcTo
  blink::SVGPathBuilder::emitArcTo
  blink::SVGPathBuilder::emitSegment
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=435261:438085
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=440242:440280

Minimized Testcase (0.05 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv97fwHfTG3swJIvgexonsLxSnGAr3bIAr6VWCHlZB7vk1ayXz8vephs1kSmo-pIHxRl93_M5ZtdJ0tnqm5oIk-TOGYJWRc2HsV8N2Hqqe_gQOvW4Kjbvsq7I9nQBmnZAscbf6TezSGwWyVWt2F_dIsPT7PDDeQ?testcase_id=5923665142349824
<script>
window.location = "http://ciao.se";</script>


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 5923665142349824 is verified as fixed, so closing issue.

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