Automatically applying components based on crash stacktrace and information from OWNERS files.

If this is incorrect, please apply the Test-Predator-Wrong-Components label.

Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/v8/v8/+/d31dff841e5be4d89e43434ef08f2cc5659f8cfa ([wasm] always allocate memory when guard regions are needed).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/ff43bbe6131b78f9bcd871dc08f4142ef18eb634

commit ff43bbe6131b78f9bcd871dc08f4142ef18eb634
Author: Eric Holk <eholk@chromium.org>
Date: Sat Mar 24 00:30:23 2018

[wasm] clear is_wasm_memory flag when neutering ArrayBuffers

Bug:  chromium:825087 
Change-Id: I2eb163e5399e98da75cd1e4ad6f0a62d6da4ae2c
Reviewed-on: https://chromium-review.googlesource.com/978840
Reviewed-by: Deepti Gandluri <gdeepti@chromium.org>
Commit-Queue: Eric Holk <eholk@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52198}
[modify] https://crrev.com/ff43bbe6131b78f9bcd871dc08f4142ef18eb634/src/objects/js-array.h
[modify] https://crrev.com/ff43bbe6131b78f9bcd871dc08f4142ef18eb634/src/wasm/wasm-memory.cc
[add] https://crrev.com/ff43bbe6131b78f9bcd871dc08f4142ef18eb634/test/mjsunit/regress/wasm/regress-825087a.js
[add] https://crrev.com/ff43bbe6131b78f9bcd871dc08f4142ef18eb634/test/mjsunit/regress/wasm/regress-825087b.js

ClusterFuzz has detected this issue as fixed in range 52197:52198.

Detailed report: https://clusterfuzz.com/testcase?key=5658570541236224

Fuzzer: mbarbella_js_mutation
Job Type: linux_asan_d8_dbg
Platform Id: linux

Crash Type: DCHECK failure
Crash Address: 
Crash State:
  is_wasm_memory == GetIsolate()->wasm_engine()->memory_tracker()->IsWasmMemory( b
  v8::internal::JSArrayBuffer::is_wasm_memory
  v8::ArrayBuffer::GetContents
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=52162:52163
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_d8_dbg&range=52197:52198

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5658570541236224

See https://github.com/google/clusterfuzz-tools 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 5658570541236224 is verified as fixed, so closing issue as verified.

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

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

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