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Issue metadata

Status: Duplicate
Merged: issue 843044
Owner:
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Chrome , Mac
Pri: 1
Type: Bug



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Null-dereference READ in ObtainAndSetContextProvider

Project Member Reported by ClusterFuzz, Apr 5 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5973912601755648

Fuzzer: mbarbella_webcomponents
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  ObtainAndSetContextProvider
  base::internal::Invoker<base::internal::BindState<void
  void base::internal::ReplyAdapter<media::GpuVideoAcceleratorFactories*, media::G
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=548271:548273

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5973912601755648

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for more information.
 
Project Member

Comment 1 by ClusterFuzz, Apr 5 2018

Labels: OS-Mac
Project Member

Comment 2 by ClusterFuzz, Apr 5 2018

Components: Internals>Core Internals>Media
Labels: Test-Predator-Auto-Components
Automatically applying components based on crash stacktrace and information from OWNERS files.

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

Comment 3 by ClusterFuzz, Apr 5 2018

Labels: Fuzz-Blocker M-67 ReleaseBlock-Beta
This crash occurs very frequently on windows platform and is likely preventing the fuzzer mbarbella_webcomponents from making much progress. Fixing this will allow more bugs to be found.

Marking this bug as a blocker for next Beta release.

If this is incorrect, please add ClusterFuzz-Wrong label and remove the ReleaseBlock-Beta label.
Cc: liber...@chromium.org
Owner: lethalantidote@chromium.org
Status: Assigned (was: Untriaged)
Seems only for when surface layer for video is enabled, so probably just need to disable the experiment.
Project Member

Comment 5 by ClusterFuzz, Apr 5 2018

Labels: OS-Chrome
Gentle ping to take a look into it as it is marked as beta blocker & as M67 branch is coming very soon on 04/12.

Thanks..!
Hi, the experiment was disabled. Thanks! 

Comment 8 by gov...@chromium.org, Apr 11 2018

A friendly reminder that M67 branch is tomorrow, Thursday 04/12! Your bug is labelled as Beta ReleaseBlock, pls make sure to land the fix ASAP to trunk. This way we branch M67 from a high quality trunk. Thank you.
Labels: -ReleaseBlock-Beta
removing RBB per c#7.
Mergedinto: 843044
Status: Duplicate (was: Assigned)

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