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Issue metadata

Status: Duplicate
Merged: issue 817800
Owner:
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference READ in blink::LowestCommonAncestor

Project Member Reported by ClusterFuzz, Mar 1 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4579732973420544

Fuzzer: bj_broddelwerk
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::LowestCommonAncestor
  blink::PaintPropertyNode<blink::ClipPaintPropertyNode>::Changed
  blink::CompositedLayerRasterInvalidator::ChunkPropertiesChanged
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=539828:539848

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4579732973420544

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 1 2018

Components: Blink>Paint
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, Mar 1 2018

Cc: chrishtr@chromium.org f...@opera.com
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

[PE] Pixel snap fragment clips by fs@opera.com - https://chromium.googlesource.com/chromium/src/+/d891e5fb83542be7eb8e23d4ff99d28541985260

[SPv175] Add mask effect node for masked SVG roots. by chrishtr@chromium.org - https://chromium.googlesource.com/chromium/src/+/09358ab1c1dd96c4a8bf516e90a927b0d98c014c

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.

Comment 3 by f...@opera.com, Mar 1 2018

Owner: f...@opera.com

Comment 4 by f...@opera.com, Mar 1 2018

Owner: chrishtr@chromium.org
Status: Assigned (was: Untriaged)
Possibly dupe of  issue 817660 .

Comment 5 by f...@opera.com, Mar 1 2018

(Both this and  issue 817660  have "-webkit-mask-image:url('?')" applied to an <svg>.)
Mergedinto: 817800
Status: Duplicate (was: Assigned)
Project Member

Comment 7 by ClusterFuzz, Mar 7 2018

ClusterFuzz has detected this issue as fixed in range 541219:541246.

Detailed report: https://clusterfuzz.com/testcase?key=4579732973420544

Fuzzer: bj_broddelwerk
Job Type: windows_asan_content_shell
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::LowestCommonAncestor
  blink::PaintPropertyNode<blink::ClipPaintPropertyNode>::Changed
  blink::CompositedLayerRasterInvalidator::ChunkPropertiesChanged
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=539828:539848
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_content_shell&range=541219:541246

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4579732973420544

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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