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Issue metadata

Status: Verified
Owner:
Closed: Aug 8
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 1
Type: Bug



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Null-dereference READ in blink::PaintChunksToCcLayer::ConvertInto

Project Member Reported by ClusterFuzz, Aug 7

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4818095970189312

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::PaintChunksToCcLayer::ConvertInto
  blink::GraphicsLayer::PaintContentsToDisplayList
  blink::GraphicsLayer::PaintContentsToDisplayList
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=581007:581011

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4818095970189312

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 7

Labels: OS-Mac
Project Member

Comment 2 by ClusterFuzz, Aug 7

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 3 by ClusterFuzz, Aug 7

Labels: Test-Predator-Auto-Owner
Owner: chrishtr@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/ba8c87a1a32815e6061b7c38d31ddfbbaac7a124 (Only invalidate property trees and compositing for PaintLayers when needed, on style change.).

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 4 by ClusterFuzz, Aug 8

ClusterFuzz has detected this issue as fixed in range 581492:581493.

Detailed report: https://clusterfuzz.com/testcase?key=4818095970189312

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_chrome_mp
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::PaintChunksToCcLayer::ConvertInto
  blink::GraphicsLayer::PaintContentsToDisplayList
  blink::GraphicsLayer::PaintContentsToDisplayList
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=581007:581011
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_chrome_mp&range=581492:581493

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4818095970189312

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 5 by ClusterFuzz, Aug 8

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 4818095970189312 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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