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Issue metadata

Status: Duplicate
Merged: issue 840730
Owner:
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in blink::WindowPerformance::ShouldBufferEventTiming

Project Member Reported by ClusterFuzz, May 9 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6231640251301888

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::WindowPerformance::ShouldBufferEventTiming
  blink::WindowPerformance::AddEventTiming
  blink::EventTiming::DidDispatchEvent
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=556508:556511

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6231640251301888

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 9 2018

Components: Blink
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 2 by ClusterFuzz, May 9 2018

Labels: Test-Predator-Auto-Owner
Owner: maxlg@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/6bc702ce4e6080adf5fff8e998e5138de88f1f7c ([EventTiming] Implement Event Timing API).

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.
Components: -Blink Blink>PerformanceAPIs

Comment 4 by maxlg@chromium.org, May 9 2018

Mergedinto: 840730
Status: Duplicate (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, May 16 2018

ClusterFuzz has detected this issue as fixed in range 558997:559001.

Detailed report: https://clusterfuzz.com/testcase?key=6231640251301888

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::WindowPerformance::ShouldBufferEventTiming
  blink::WindowPerformance::AddEventTiming
  blink::EventTiming::DidDispatchEvent
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=556508:556511
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=558997:559001

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6231640251301888

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.

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