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Issue 898454 link

Starred by 2 users

Issue metadata

Status: Duplicate
Merged: issue 803649
Owner:
Closed: Oct 26
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in blink::PropertyTreeManager::SynthesizeCcEffectsForClipsIfNeeded

Project Member Reported by ClusterFuzz, Oct 24

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5745432091951104

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::PropertyTreeManager::SynthesizeCcEffectsForClipsIfNeeded
  blink::PropertyTreeManager::BuildEffectNodesRecursively
  blink::PropertyTreeManager::BuildEffectNodesRecursively
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=602149:602151

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5745432091951104

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 24

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, Oct 24

Labels: Test-Predator-Auto-Owner
Owner: pdr@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/4e8eb7fbb5ada77093c526013db61d2c438ca24d ([BlinkGenPropertyTrees] Promote BGPT to experimental).

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.
Status: Started (was: Assigned)
Minimized testcase:
<!doctype html>
<style>
body {
  overflow: -webkit-paged-x;
  clip-path: circle(40%);
}
div {
  will-change: transform;
}
</style>
<body>
  <div></div>
</body>


Work in progress: https://chromium-review.googlesource.com/c/chromium/src/+/1298239
Mergedinto: 803649
Status: Duplicate (was: Started)
This turned out to be another instance of https://crbug.com/803649
Project Member

Comment 5 by ClusterFuzz, Oct 30

ClusterFuzz has detected this issue as fixed in range 603709:603710.

Detailed report: https://clusterfuzz.com/testcase?key=5745432091951104

Fuzzer: ochang_domfuzzer
Job Type: linux_asan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::PropertyTreeManager::SynthesizeCcEffectsForClipsIfNeeded
  blink::PropertyTreeManager::BuildEffectNodesRecursively
  blink::PropertyTreeManager::BuildEffectNodesRecursively
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=602149:602151
Fixed: https://clusterfuzz.com/revisions?job=linux_asan_content_shell_drt&range=603709:603710

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5745432091951104

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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