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/+/e520f4e53439dc8b42918895e883f849bef1152a ([api] Add an ApiCheck for Function::Call on a null handle).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.

This looks the same as issue 792604, but in V8RemotePlaybackAvailabilityCallback

 Issue 798130  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/da8da759e4dc7c823925c190bb5066aeecb8ca71

commit da8da759e4dc7c823925c190bb5066aeecb8ca71
Author: Yuki Shiino <yukishiino@chromium.org>
Date: Wed Jan 17 09:03:44 2018

RemotePlayback: Fixes memory corruption caused by invalid key access.

HashMap<int, T> doesn't support 0 (zero) as a valid key, and
HashMap::find(0) returns an iterator pointing somewhere invalid.
Use of such an iterator causes disaster.

This patch checks the range of the given key before passing it
in HashMap::find.

Bug:  797480 
Change-Id: Ieb6dd5930f5a5cf81ff3826c00bcc6365daac924
Reviewed-on: https://chromium-review.googlesource.com/868051
Reviewed-by: Hitoshi Yoshida <peria@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Commit-Queue: Yuki Shiino <yukishiino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#529678}
[modify] https://crrev.com/da8da759e4dc7c823925c190bb5066aeecb8ca71/third_party/WebKit/Source/modules/remoteplayback/RemotePlayback.cpp

ClusterFuzz has detected this issue as fixed in range 529677:529678.

Detailed report: https://clusterfuzz.com/testcase?key=5867903605014528

Fuzzer: inferno_twister
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Abrt
Crash Address: 0x03e900000001
Crash State:
  blink::ReportFatalErrorInMainThread
  v8::Function::Call
  blink::V8ScriptRunner::CallFunction
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=524052:524063
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=529677:529678

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5867903605014528

Additional requirements: Requires Gestures

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 5867903605014528 is verified as fixed, so closing issue as verified.

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