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Issue metadata

Status: Verified
Owner:
Closed: Oct 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference in base::internal::WeakReferenceOwner::GetRef

Project Member Reported by ClusterFuzz, Oct 7 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6290829026263040

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000007
Crash State:
  base::internal::WeakReferenceOwner::GetRef
  base::SupportsWeakPtr<media::RendererWebMediaPlayerDelegate>::AsWeakPtr
  content::HtmlVideoElementCapturerSource::CreateFromWebMediaPlayerImpl
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=454873:455044

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6290829026263040

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 7 2017

Components: Blink>MediaStream>CaptureFromElement Internals>Core
Labels: Test-Predator-AutoComponents
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 2 by ClusterFuzz, Oct 7 2017

Labels: Test-Predator-AutoOwner
Owner: mcasas@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/d80e6732a30c9f8b5c725fc98b013577799022cd (HTMLMediaElement capture: teach the captured MStream to follow up source events).

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

Comment 3 by ClusterFuzz, Oct 7 2017

ClusterFuzz has detected this issue as fixed in range 507112:507143.

Detailed report: https://clusterfuzz.com/testcase?key=6290829026263040

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000007
Crash State:
  base::internal::WeakReferenceOwner::GetRef
  base::SupportsWeakPtr<media::RendererWebMediaPlayerDelegate>::AsWeakPtr
  content::HtmlVideoElementCapturerSource::CreateFromWebMediaPlayerImpl
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=454873:455044
Fixed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=507112:507143

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6290829026263040

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.
Project Member

Comment 4 by ClusterFuzz, Oct 7 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6290829026263040 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components
Labels: -Test-Predator-AutoOwner Test-Predator-Auto-Owner

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