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Issue 811025 link

Starred by 2 users
Status: Duplicate
Merged: issue 804075
Owner: ----
Closed: Feb 2018
Cc:
█ djmix....@samsung.com
dmazz...@chromium.org
aboxhall@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug
Team-Accessibility



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Null-dereference READ in blink::AXMenuList::DidUpdateActiveOption

Project Member Reported by ClusterFuzz, Feb 10 2018 
Detailed report: https://clusterfuzz.com/testcase?key=5487766453092352

Fuzzer: inferno_layout_test_unmodified
Job Type: linux_ubsan_vptr_content_shell_drt
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::AXMenuList::DidUpdateActiveOption
  blink::LayoutMenuList::UpdateFromElement
  blink::HTMLSelectElement::SelectOption
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_vptr_content_shell_drt&range=514498:517702

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5487766453092352

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 10 2018

Components: Blink>Accessibility Blink>Layout
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, Feb 10 2018

Cc: djmix....@samsung.com dmazz...@chromium.org
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Fix naming of AXObject throughout Blink. by dmazzoni@chromium.org - https://chromium.googlesource.com/chromium/src/+/f1317f4bef330412662755fb32dd73634190ebec

Null dereference in AXMenuList::DidUpdateActiveOption by djmix.kim@samsung.com - https://chromium.googlesource.com/chromium/src/+/f2357fd60fcda8b432ad044e7d218b18abd4cb50

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.

Comment 3 by e...@chromium.org, Feb 12 2018

Components: -Blink>Layout Blink>Forms

Comment 4 by tkent@chromium.org, Feb 16 2018

Components: -Blink>Forms
Remove Blink>Forms. This is obviously in AX code.

Comment 5 by brajkumar@chromium.org, Feb 16 2018

Mergedinto: 804075
Status: Duplicate (was: Untriaged)
This issue looks similar to  bug 804075 , hence merging in to it. Feel free to undupe if it's a different issue.

Thanks!
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