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Issue metadata

Status: Verified
Owner:
Closed: Aug 16
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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

Project Member Reported by ClusterFuzz, Aug 15

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5109361727504384

Fuzzer: puzzor_svg
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::Node::GetLayoutObject
  NotifyIncomingReferences<
  blink::RemoveFromCacheAndInvalidateDependencies
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=583155:583156

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5109361727504384

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 15

Components: Blink>DOM Blink>SVG
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, Aug 15

Labels: Test-Predator-Auto-Owner
Owner: keishi@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/bea6537a032fb89f8f3fd6ee839267f9963fddfe (Change SMILTimeContainer::scheduled_animations_ to use ephemeron).

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.
Components: -Blink>DOM
Labels: Test-Predator-Wrong-Components
Labels: -Pri-1 Pri-2
Null reads are not P1.
Project Member

Comment 5 by ClusterFuzz, Aug 16

ClusterFuzz has detected this issue as fixed in range 583246:583247.

Detailed report: https://clusterfuzz.com/testcase?key=5109361727504384

Fuzzer: puzzor_svg
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::Node::GetLayoutObject
  NotifyIncomingReferences<
  blink::RemoveFromCacheAndInvalidateDependencies
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=583155:583156
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=583246:583247

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5109361727504384

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 6 by ClusterFuzz, Aug 16

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5109361727504384 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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