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Issue metadata

Status: Duplicate
Merged: issue 795652
Owner:
Last visit > 30 days ago
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in blink::Node::GetLayoutObject

Project Member Reported by ClusterFuzz, Dec 14 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5179432041185280

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::Node::GetLayoutObject
  blink::TextControlInnerEditorElement::CustomStyleForLayoutObject
  blink::Element::StyleForLayoutObject
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=521258:521266

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5179432041185280

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 14 2017

Components: Blink>DOM Blink>Forms
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 14 2017

Labels: Test-Predator-Auto-Owner
Owner: kochi@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/27fc5a3a1f3f1bdfa1e23602260c3d206b9ea79f (Remove AlwaysCreateUserAgentShadowRoot).

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

Comment 3 by kochi@chromium.org, Dec 26 2017

Mergedinto: 795652
Status: Duplicate (was: Assigned)
Very probable that this is same as  issue 795652 .
Project Member

Comment 4 by ClusterFuzz, Jan 6 2018

ClusterFuzz has detected this issue as fixed in range 527241:527242.

Detailed report: https://clusterfuzz.com/testcase?key=5179432041185280

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::Node::GetLayoutObject
  blink::TextControlInnerEditorElement::CustomStyleForLayoutObject
  blink::Element::StyleForLayoutObject
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=521258:521266
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_chrome&range=527241:527242

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5179432041185280

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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