titzer@, could you take a look? Since only your CL shows up in the regression range.
Please feel free to re-assign owner if you see fit. 

Thanks!

This is a serious security regression. If you are not able to fix this quickly, please revert the change that introduced it.

If this doesn't affect a release branch, or has not been properly classified for severity, please update the Security_Impact or Security_Severity labels, and remove the ReleaseBlock label. To disable this altogether, apply ReleaseBlock-NA.

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/+/0c22df6555ef48e097af8d0fd7cba55664b01bf3

commit 0c22df6555ef48e097af8d0fd7cba55664b01bf3
Author: titzer <titzer@chromium.org>
Date: Mon Jul 10 11:18:45 2017

[wasm] Allow full u32 range for table maximum in WebAssembly.Table constructor.

R=clemensh@chromium.org
BUG= chromium:740199 

Review-Url: https://codereview.chromium.org/2977543002
Cr-Commit-Position: refs/heads/master@{#46508}

[modify] https://crrev.com/0c22df6555ef48e097af8d0fd7cba55664b01bf3/src/wasm/module-compiler.cc
[modify] https://crrev.com/0c22df6555ef48e097af8d0fd7cba55664b01bf3/src/wasm/wasm-js.cc
[modify] https://crrev.com/0c22df6555ef48e097af8d0fd7cba55664b01bf3/src/wasm/wasm-objects.cc
[modify] https://crrev.com/0c22df6555ef48e097af8d0fd7cba55664b01bf3/src/wasm/wasm-objects.h
[modify] https://crrev.com/0c22df6555ef48e097af8d0fd7cba55664b01bf3/test/mjsunit/wasm/table.js

ClusterFuzz has detected this issue as fixed in range 46507:46508.

Detailed report: https://clusterfuzz.com/testcase?key=4562327746904064

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_v8_arm_dbg
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  Smi::IsValid(value) in objects.h
  v8::internal::WasmTableObject::New
  v8::WebAssemblyTable
  
Sanitizer: address (ASAN)

Regressed: V8: 46474:46475
Fixed: V8: 46507:46508

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4562327746904064


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.

This bug has been closed for more than 14 weeks. Removing security view restrictions.

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