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Issue metadata

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

Blocking:
issue 497851



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Null-dereference READ in blink::SnapCoordinator::UpdateSnapContainerData

Project Member Reported by ClusterFuzz, Dec 6 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4754707422904320

Fuzzer: inferno_twister
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000000
Crash State:
  blink::SnapCoordinator::UpdateSnapContainerData
  blink::SnapCoordinator::SnapContainerDidChange
  blink::LayoutBox::UpdateScrollSnapMappingAfterStyleChange
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=521792:521850

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4754707422904320

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 6 2017

Components: Blink>Layout
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, Dec 6 2017

Labels: Test-Predator-Auto-Owner
Owner: sunyunjia@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/a9783e125f7390062fb6b574e05923a24b4737db (Snap at GestureScrollEnd on main thread.).

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

Comment 3 by ClusterFuzz, Dec 6 2017

ClusterFuzz has detected this issue as fixed in range 521882:521932.

Detailed report: https://clusterfuzz.com/testcase?key=4754707422904320

Fuzzer: inferno_twister
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000000
Crash State:
  blink::SnapCoordinator::UpdateSnapContainerData
  blink::SnapCoordinator::SnapContainerDidChange
  blink::LayoutBox::UpdateScrollSnapMappingAfterStyleChange
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=521792:521850
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=521882:521932

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4754707422904320

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, Dec 6 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4754707422904320 is verified as fixed, so closing issue as verified.

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

Comment 5 by ClusterFuzz, Dec 6 2017

ClusterFuzz testcase 4754707422904320 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Blocking: 497851

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