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Issue 772662 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Oct 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference in blink::LayoutSlider::UpdateLayout

Project Member Reported by ClusterFuzz, Oct 7 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4711417415729152

Fuzzer: inferno_layout_test_unmodified
Job Type: windows_syzyasan_content_shell
Platform Id: windows

Crash Type: Null-dereference
Crash Address: 0x00000008
Crash State:
  blink::LayoutSlider::UpdateLayout
  blink::LayoutBlockFlow::LayoutInlineChildren
  blink::LayoutBlockFlow::LayoutChildren
  
Memory Tool: SYZYASAN

Regressed: https://clusterfuzz.com/revisions?job=windows_syzyasan_content_shell&range=370165:370699

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4711417415729152

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 7 2017

Components: Blink>Layout
Labels: Test-Predator-AutoComponents
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: msrchandra@chromium.org e...@chromium.org pnangunoori@chromium.org
Labels: M-62 Test-Predator-Wrong
Owner: msten...@opera.com
Status: Assigned (was: Untriaged)
Predator and CL could not provide any possible suspects.
Using the code search for the file, “layoutblockflow.cpp” assigning to concern owner from GIT revision log.
Suspecting Commit#
https://chromium.googlesource.com/chromium/src/+/0c8918a74706408a1c76517381984a6e22bd5930
@mstensho -- Could you please look into this issue, kindly reassign if it has nothing to do with your changes.
Thank You.

Comment 3 by msten...@opera.com, Oct 9 2017

Cc: msten...@opera.com
Owner: ----
Status: Available (was: Assigned)
I don't think this is my fault, but maybe someone who has access to Windows could confirm. I cannot reproduce this in Linux, at least.
Labels: CF-NeedsTriage
Status: Untriaged (was: Available)
Unable to provide possible suspect using Predator, CL and Code Search.
Could someone please look into the issue.
Thank You.

Comment 5 by e...@chromium.org, Oct 14 2017

Labels: Needs-Investigation
Have not been able to reproduce on either linux or windows.

Comment 6 by e...@chromium.org, Oct 18 2017

Status: WontFix (was: Untriaged)
Closing based on lack of regression range and inability to reproduce.
Project Member

Comment 7 by ClusterFuzz, Oct 26 2017

Labels: Needs-Feedback
ClusterFuzz testcase 4711417415729152 is still reproducing on tip-of-tree build (trunk).

If this testcase was not reproducible locally or unworkable, ignore this notification and we will file another bug soon with hopefully a better and workable testcase.

Otherwise, if this is not intended to be fixed (e.g. this is an intentional crash), please add ClusterFuzz-Ignore label to prevent future bug filing with similar crash stacktrace.
Labels: -Test-Predator-AutoComponents Test-Predator-Auto-Components

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