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Issue 844005 link

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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-Regression



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

Project Member Reported by ClusterFuzz, May 17 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6280357541052416

Fuzzer: inferno_twister_c
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=559472:559474

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6280357541052416

Additional requirements: Requires HTTP

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 17 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.
Cc: brajkumar@chromium.org
Labels: -Type-Bug M-68 Test-Predator-Wrong Type-Bug-Regression
Owner: maxlg@chromium.org
Status: Assigned (was: Untriaged)
This issue looks similar to  bug 840730 , hence assigning to the same owner for more updates.

maxlg@ Could you please take a look in to this issue?

Thanks!
Project Member

Comment 3 by ClusterFuzz, May 18 2018

ClusterFuzz has detected this issue as fixed in range 559831:559832.

Detailed report: https://clusterfuzz.com/testcase?key=6280357541052416

Fuzzer: inferno_twister_c
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=559472:559474
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=559831:559832

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6280357541052416

Additional requirements: Requires HTTP

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, May 18 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 6280357541052416 is verified as fixed, so closing issue as verified.

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

Comment 5 by maxlg@chromium.org, May 22 2018

Mergedinto: 840730
Status: Duplicate (was: Verified)

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