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Issue 814708 link

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Issue metadata

Status: Verified
Owner: ----
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Regression



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Null-dereference READ in blink::LowestCommonAncestor

Project Member Reported by ClusterFuzz, Feb 22 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6057413988581376

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::LowestCommonAncestor
  blink::PaintPropertyNode<blink::EffectPaintPropertyNode>::Changed
  blink::CompositedLayerRasterInvalidator::ChunkPropertiesChanged
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=537453:537463

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6057413988581376

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 22 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.
Cc: schenney@chromium.org brajkumar@chromium.org
Labels: -Type-Bug M-66 Test-Predator-Wrong Needs-Feedback Type-Bug-Regression
schenney@ Could you please confirm is this issue is duplicate of  bug 814261 ? Observing similar log under regression revision range.

Thanks!
Project Member

Comment 3 by ClusterFuzz, Feb 23 2018

ClusterFuzz has detected this issue as fixed in range 538633:538636.

Detailed report: https://clusterfuzz.com/testcase?key=6057413988581376

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::LowestCommonAncestor
  blink::PaintPropertyNode<blink::EffectPaintPropertyNode>::Changed
  blink::CompositedLayerRasterInvalidator::ChunkPropertiesChanged
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=537453:537463
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=538633:538636

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6057413988581376

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, Feb 23 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 6057413988581376 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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