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Issue metadata

Status: Duplicate
Merged: issue 877498
Owner:
Closed: Aug 25
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in AddRef

Project Member Reported by ClusterFuzz, Aug 24

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4537013915877376

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  AddRef
  scoped_refptr<WTF::StringImpl>::scoped_refptr
  scoped_refptr
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=585755:585756

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4537013915877376

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 24

Components: Internals>Core
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 24

Labels: Test-Predator-Auto-Owner
Owner: yosin@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/72d438ee5563db3087ea1f6630834343bdb8fb65 (Implement Element#innerText to conform the spec).

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.
Mergedinto: 877498
Status: Duplicate (was: Assigned)
This is caused by wrong type check on InlineBox. We should use InlineBox::IsInlineTextBox() instead of InlineBox::IsText().

We track this by  issue 877498 .
Project Member

Comment 4 by ClusterFuzz, Aug 28

ClusterFuzz has detected this issue as fixed in range 586221:586222.

Detailed report: https://clusterfuzz.com/testcase?key=4537013915877376

Fuzzer: inferno_twister_c
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  AddRef
  scoped_refptr<WTF::StringImpl>::scoped_refptr
  scoped_refptr
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=585755:585756
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=586221:586222

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4537013915877376

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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