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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::ComputeTextBounds<blink::EditingAlgorithm<blink::FlatTreeTraversal> >

Project Member Reported by ClusterFuzz, Jun 30 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4947536384360448

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000008
Crash State:
  blink::ComputeTextBounds<blink::EditingAlgorithm<blink::FlatTreeTraversal> >
  blink::ComputeTextRectTemplate<blink::EditingAlgorithm<blink::FlatTreeTraversal>
  blink::ComputeTextRect
  
Memory Tool: SYZYASAN

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

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4947536384360448


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 11 2017

ClusterFuzz has detected this issue as fixed in range 485203:485224.

Detailed report: https://clusterfuzz.com/testcase?key=4947536384360448

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000008
Crash State:
  blink::ComputeTextBounds<blink::EditingAlgorithm<blink::FlatTreeTraversal> >
  blink::ComputeTextRectTemplate<blink::EditingAlgorithm<blink::FlatTreeTraversal>
  blink::ComputeTextRect
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=483471:483525
Fixed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=485203:485224

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4947536384360448


See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs 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 11 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4947536384360448 is verified as fixed, so closing issue.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.

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