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Issue metadata

Status: Verified
Owner: ----
Closed: Jul 2017
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference in blink::PositionTemplate<blink::EditingAlgorithm<blink::NodeTraversal> >::LastPos

Project Member Reported by ClusterFuzz, Jul 14 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5549587048955904

Fuzzer: bj_broddelwerk
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x0000000b
Crash State:
  blink::PositionTemplate<blink::EditingAlgorithm<blink::NodeTraversal> >::LastPos
  blink::LastEditablePositionBeforePositionInRootAlgorithm<blink::EditingAlgorithm
  blink::LastEditablePositionBeforePositionInRoot
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=483471:483525

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5549587048955904


Issue filed automatically.

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
 
Project Member

Comment 1 by ClusterFuzz, Jul 23 2017

ClusterFuzz has detected this issue as fixed in range 488838:488849.

Detailed report: https://clusterfuzz.com/testcase?key=5549587048955904

Fuzzer: bj_broddelwerk
Job Type: windows_syzyasan_chrome
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x0000000b
Crash State:
  blink::PositionTemplate<blink::EditingAlgorithm<blink::NodeTraversal> >::LastPos
  blink::LastEditablePositionBeforePositionInRootAlgorithm<blink::EditingAlgorithm
  blink::LastEditablePositionBeforePositionInRoot
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=483471:483525
Fixed: https://clusterfuzz.com/revisions?job=windows_syzyasan_chrome&range=488838:488849

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5549587048955904


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 2 by ClusterFuzz, Jul 23 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 5549587048955904 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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