Predator and CL did not find any possible suspects.
Using Code Search for the file, "wasm-interpreter.cc" assigning to the concern owner.
Suspecting Commit#
https://chromium.googlesource.com/v8/v8.git/+/783f68c53bef3a708c29c9460ff7842a4801835d

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

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/0f9680cd2d4bdf8c6f4bd3681053e6192e3dbb74

commit 0f9680cd2d4bdf8c6f4bd3681053e6192e3dbb74
Author: gdeepti <gdeepti@chromium.org>
Date: Fri Mar 31 22:52:59 2017

[wasm] Gate SIMD load/store opcodes with the --wasm-simd-prototype flag.

BUG= chromium:702460 

R=mtrofin@chromium.org, bbudge@chromium.org

Review-Url: https://codereview.chromium.org/2794693002
Cr-Commit-Position: refs/heads/master@{#44319}

[modify] https://crrev.com/0f9680cd2d4bdf8c6f4bd3681053e6192e3dbb74/src/wasm/function-body-decoder.cc
[add] https://crrev.com/0f9680cd2d4bdf8c6f4bd3681053e6192e3dbb74/test/mjsunit/regress/wasm/regression-702460.js
[modify] https://crrev.com/0f9680cd2d4bdf8c6f4bd3681053e6192e3dbb74/test/mjsunit/wasm/wasm-constants.js

ClusterFuzz has detected this issue as fixed in range 461338:461339.

Detailed report: https://clusterfuzz.com/testcase?key=6751719339065344

Fuzzer: afl_v8_wasm_call_fuzzer
Job Type: afl_chrome_asan
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  Unknown or unimplemented opcode #192:s128.load128 in wasm-interpreter.cc
  v8::internal::wasm::ThreadImpl::Execute
  Run
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=457459:457505
Fixed: https://clusterfuzz.com/revisions?job=afl_chrome_asan&range=461338:461339

Reproducer Testcase: https://clusterfuzz.com/download/AMIfv96oT1sK2FDmDHhfcjzz8ntOBAZi4e3kJBaB0_VhfUfokR_kniVFxWxZGKKY1Rp85ceYiX9CgKIKR9yRbxCNz-ZTttBdFx2eXa7NEjDD0rwdHX2tjhtc2AmkwiLBFKdNTl6YNyCt9Fzya-qfdYfs363MKhkVWDQTH7fHG0Lnp56mDDeUoS0y02YXc_t-jMPAfrwG959vm2wgd8MLTkd0BVHzNd_U3y7r2xWOE8n8AuD1kYcMEzeGMgvSqnv0u7s8IQ6sXvLX4g2izs-DngzydjmHDjXXMG6d3FyRzJSED9Wp9rXV48hNGdcdPRcFw1wU8JqlAFjJ9lodsn2vRPxKdp3eo88y6bozCDVOIup5Zhy-DPuOeUS7seHmoH-Mx8_XSOTyXAhSV_xvtQPWFU6YwWuL7yAGaw?testcase_id=6751719339065344


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.