Find it does not provide any possible suspects, below is the find it results
Suspected CLs	Findit failed to find any stack trace. Is it in a new format?

From the regressed CL assigning to the concern owner,
https://chromium.googlesource.com/v8/v8/+log/5d3ce7ea4fa299f8463ee15282fa986b50702cd8..bcb3af59be2c52ca13a0adae500f042a64093b6d?pretty=fuller

Suspecting Commit# bcb3af59be2c52ca13a0adae500f042a64093b6d
Suspecting Review URL# https://codereview.chromium.org/2488673004

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

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/4513532f6362353eaf50ec30d753a346e795b164

commit 4513532f6362353eaf50ec30d753a346e795b164
Author: ishell <ishell@chromium.org>
Date: Mon Nov 21 11:21:30 2016

[ic] Don't check full prototype chain if name is a private symbol.

BUG= chromium:664974 ,  chromium:664802 , v8:5561

Review-Url: https://codereview.chromium.org/2513893003
Cr-Commit-Position: refs/heads/master@{#41133}

[modify] https://crrev.com/4513532f6362353eaf50ec30d753a346e795b164/src/ic/ic.cc
[modify] https://crrev.com/4513532f6362353eaf50ec30d753a346e795b164/src/prototype.h
[add] https://crrev.com/4513532f6362353eaf50ec30d753a346e795b164/test/mjsunit/regress/regress-crbug-664802.js
[add] https://crrev.com/4513532f6362353eaf50ec30d753a346e795b164/test/mjsunit/regress/regress-crbug-664974.js

ClusterFuzz has detected this issue as fixed in range 41132:41133.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6617766762381312

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_v8_arm_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  !v8::internal::FLAG_enable_slow_asserts || (object->IsJSObject()) in objects-inl
  
Regressed: V8: r40945:40946
Fixed: V8: r41132:41133

Minimized Testcase (0.46 Kb): https://cluster-fuzz.appspot.com/download/AMIfv945siS71pC8PbvolAPG4iF1SAGqbaULpMBN53lagvNSUTHCP5259hvWyjzy95JLckjDB4JSAGiF8D-AJPNT1kA_GTB_XDMbXum3B-svcIJK6HyP4PzoovMRYYNBGLkh8P_ROcmvHpka59KvJ8FxIVowO94Zig?testcase_id=6617766762381312

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.

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

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/8feaaa256e6e36aad210467d808001bc26471e98

commit 8feaaa256e6e36aad210467d808001bc26471e98
Author: ishell@chromium.org <ishell@chromium.org>
Date: Mon Dec 05 12:47:56 2016

Merged: Squashed multiple commits.

Merged: [ic] Invalidate prototype validity cell when a slow prototype becomes fast.
Revision: f718cd1309be2327d1d218560f8663f8b165e4fa

Merged: [ic] Don't check full prototype chain if name is a private symbol.
Revision: 4513532f6362353eaf50ec30d753a346e795b164

BUG= chromium:664802 , chromium:664974 , chromium:665886 ,v8:5561
LOG=N
NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true
R=cbruni@chromium.org

Review URL: https://codereview.chromium.org/2554503002 .

Cr-Commit-Position: refs/branch-heads/5.6@{#32}
Cr-Branched-From: bdd3886218dfe76e8560eb8a18401942452ae859-refs/heads/5.6.326@{#1}
Cr-Branched-From: 879f6599eee6e1dfcbe9a24bf688b261c03e9558-refs/heads/master@{#41014}

[modify] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/src/factory.cc
[modify] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/src/ic/ic.cc
[modify] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/src/objects.cc
[modify] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/src/objects.h
[modify] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/src/prototype.h
[add] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/test/mjsunit/regress/regress-crbug-664802.js
[add] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/test/mjsunit/regress/regress-crbug-664974.js
[add] https://crrev.com/8feaaa256e6e36aad210467d808001bc26471e98/test/mjsunit/regress/regress-crbug-665886.js