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Issue metadata

Status: Verified
Owner: ----
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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Null-dereference READ in FormatBlock pre command

Project Member Reported by ClusterFuzz, Feb 1 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6229729670332416

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  firstChild
  blink::Node* blink::NodeTraversal::ChildAtTemplate<blink::Node const>
  ChildAt
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=527397:527403

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6229729670332416

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 1 2018

Components: Blink>DOM Blink>Editing
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.
Components: -Blink>Editing -Blink>DOM Blink>Editing>Command
Labels: -Pri-1 Pri-3
Status: Available (was: Untriaged)
Summary: Null-dereference READ in FormatBlock pre command (was: Null-dereference READ in firstChild)
Yet another FormatBlock crash... Applying P3 due to low real world usage of this command.
Project Member

Comment 3 by ClusterFuzz, Feb 13 2018

ClusterFuzz has detected this issue as fixed in range 536251:536254.

Detailed report: https://clusterfuzz.com/testcase?key=6229729670332416

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_lsan_chrome_mp
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  firstChild
  blink::Node* blink::NodeTraversal::ChildAtTemplate<blink::Node const>
  ChildAt
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=527397:527403
Fixed: https://clusterfuzz.com/revisions?job=linux_lsan_chrome_mp&range=536251:536254

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6229729670332416

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 4 by ClusterFuzz, Feb 13 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 6229729670332416 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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