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Issue metadata

Status: Verified
Owner:
Closed: Jul 11
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug


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Null-dereference READ in blink::WebLocalFrameImpl::LocalRootFrameWidget

Project Member Reported by ClusterFuzz, May 6 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5468947944833024

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::WebLocalFrameImpl::LocalRootFrameWidget
  blink::ChromeClientImpl::ScheduleAnimation
  blink::LocalFrameView::ScheduleAnimation
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=542401:542402

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5468947944833024

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 6 2018

Components: Blink>Internals
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 6 2018

Labels: Test-Predator-Auto-Owner
Owner: dcheng@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/4a96073611e1981d8572a2eadf7f8412a28ba157 ([OOPIF] Remove use of covariant return types for WebLocalFrame::FrameWidget().).

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.
Project Member

Comment 3 by ClusterFuzz, Jul 11

ClusterFuzz has detected this issue as fixed in range 573691:573692.

Detailed report: https://clusterfuzz.com/testcase?key=5468947944833024

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::WebLocalFrameImpl::LocalRootFrameWidget
  blink::ChromeClientImpl::ScheduleAnimation
  blink::LocalFrameView::ScheduleAnimation
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=542401:542402
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=573691:573692

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5468947944833024

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, Jul 11

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5468947944833024 is verified as fixed, so closing issue as verified.

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

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