Tightened access. The issue is a security one - invalid memory accesses.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/f9c9616e622cb712841b1151483fe8d7ff844100

commit f9c9616e622cb712841b1151483fe8d7ff844100
Author: Mircea Trofin <mtrofin@chromium.org>
Date: Wed Dec 20 19:17:12 2017

[wasm] Ensure free-standing tables are rooted.

Bug:  chromium:796584 
Change-Id: Ib6a62d616d36344f35cad0b0a177f8f07c7fd2ac
Reviewed-on: https://chromium-review.googlesource.com/836849
Reviewed-by: Brad Nelson <bradnelson@chromium.org>
Commit-Queue: Mircea Trofin <mtrofin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#50244}
[modify] https://crrev.com/f9c9616e622cb712841b1151483fe8d7ff844100/src/wasm/module-compiler.cc
[modify] https://crrev.com/f9c9616e622cb712841b1151483fe8d7ff844100/src/wasm/wasm-objects-inl.h
[modify] https://crrev.com/f9c9616e622cb712841b1151483fe8d7ff844100/src/wasm/wasm-objects.h
[modify] https://crrev.com/f9c9616e622cb712841b1151483fe8d7ff844100/test/mjsunit/wasm/indirect-tables.js

This bug requires manual review: M64 has already been promoted to the beta branch, so this requires manual review
Please contact the milestone owner if you have questions.
Owners: cmasso@(Android), cmasso@(iOS), kbleicher@(ChromeOS), abdulsyed@(Desktop)

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

Please add affected OSs.

Please merge the approved cl(s) to M64 release branch 3282 as soon as possible.

+Brad for the merge.

Please merge this today

This one needs a rebase in order to merge it.

 titzer@ please take care of this

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/62dce33fd852c79062111906cf09f1cfecfe1c6e

commit 62dce33fd852c79062111906cf09f1cfecfe1c6e
Author: Ben L. Titzer <titzer@google.com>
Date: Mon Jan 15 18:21:34 2018

Merged: [wasm] Ensure free-standing tables are rooted.

Revision: f9c9616e622cb712841b1151483fe8d7ff844100

BUG= chromium:796584 
LOG=N
NOTRY=true
NOPRESUBMIT=true
NOTREECHECKS=true
R=mlippautz@chromium.org

Change-Id: I5e4a4a4fb6bea1821558d8a8d8baa88ca08f26f7
Reviewed-on: https://chromium-review.googlesource.com/867373
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Cr-Commit-Position: refs/branch-heads/6.4@{#55}
Cr-Branched-From: 0407506af3d9d7e2718be1d8759296165b218fcf-refs/heads/6.4.388@{#1}
Cr-Branched-From: a5fc4e085ee543cb608eb11034bc8f147ba388e1-refs/heads/master@{#49724}
[modify] https://crrev.com/62dce33fd852c79062111906cf09f1cfecfe1c6e/src/wasm/module-compiler.cc
[modify] https://crrev.com/62dce33fd852c79062111906cf09f1cfecfe1c6e/src/wasm/wasm-objects-inl.h
[modify] https://crrev.com/62dce33fd852c79062111906cf09f1cfecfe1c6e/src/wasm/wasm-objects.h
[modify] https://crrev.com/62dce33fd852c79062111906cf09f1cfecfe1c6e/test/mjsunit/wasm/indirect-tables.js

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