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Issue 762480 link

Starred by 1 user
Status: WontFix
Owner:
ccameron@chromium.org
Closed: Oct 2017
Cc:
█ msrchandra@chromium.org
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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CHECK failure: gr_context in AcceleratedImageBufferSurface.cpp

Project Member Reported by ClusterFuzz, Sep 6 2017 
Detailed report: https://clusterfuzz.com/testcase?key=6707887580905472

Fuzzer: inferno_webbot
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  gr_context in AcceleratedImageBufferSurface.cpp
  blink::AcceleratedImageBufferSurface::AcceleratedImageBufferSurface
  _ZN3WTF10MakeUniqueIN5blink29AcceleratedImageBufferSurfaceEJRKNS1_7IntSizeERNS1_
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=499847:499856

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6707887580905472

Issue filed automatically.

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

Comment 1 by msrchandra@chromium.org, Sep 6 2017

Cc: msrchandra@chromium.org
Labels: Test-Predator-Wrong M-63
Owner: ccameron@chromium.org
Status: Assigned (was: Untriaged)
Predator and CL could not provide any possible suspects.
Using Code Search for the file, "AcceleratedImageBufferSurface.cpp" assigning to the concern owner.

Suspecting Commit#
https://chromium.googlesource.com/chromium/src/+/30a7f83076be71351b71dfcb6cefee6ec2a9faca

@ccameron -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

Comment 2 by ccameron@chromium.org, Sep 21 2017 

To look at the lines above
  GrContext* gr_context =
      context_provider_wrapper_->ContextProvider()->GetGrContext();
  CHECK(gr_context);

Looks like a context-lost could cause this, so the CHECK seems perhaps invalid.
Project Member

Comment 3 by ClusterFuzz, Oct 26 2017

Status: WontFix (was: Assigned)
ClusterFuzz testcase 6707887580905472 is flaky and no longer crashes, so closing issue.

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