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Issue 823730 link

Starred by 2 users

Issue metadata

Status: Verified
Owner: ----
Closed: May 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug-Regression
Team-Accessibility



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Null-dereference READ in blink::AXNodeObject::NativeAccessibilityRoleIgnoringAria

Project Member Reported by ClusterFuzz, Mar 20 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4521341609574400

Fuzzer: bj_broddelwerk
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::AXNodeObject::NativeAccessibilityRoleIgnoringAria
  blink::AXLayoutObject::NativeAccessibilityRoleIgnoringAria
  blink::AXLayoutObject::DetermineAccessibilityRole
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=535692:535694

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4521341609574400

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 20 2018

Components: Blink>Accessibility
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.
Cc: brajkumar@chromium.org
Labels: -Type-Bug M-66 Test-Predator-Wrong CF-NeedsTriage Type-Bug-Regression
Unable to find actual suspect through code search and also observing no related changes under provided regression range.

aboxhall/dmazzoni@ Could you please take a look in to this issue?

Thanks!
Project Member

Comment 3 by ClusterFuzz, May 15 2018

ClusterFuzz has detected this issue as fixed in range 558606:558609.

Detailed report: https://clusterfuzz.com/testcase?key=4521341609574400

Fuzzer: bj_broddelwerk
Job Type: linux_msan_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::AXNodeObject::NativeAccessibilityRoleIgnoringAria
  blink::AXLayoutObject::NativeAccessibilityRoleIgnoringAria
  blink::AXLayoutObject::DetermineAccessibilityRole
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=535692:535694
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_content_shell_drt&range=558606:558609

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4521341609574400

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, May 15 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Untriaged)
ClusterFuzz testcase 4521341609574400 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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