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Issue 832369 link

Starred by 1 user
Status: Duplicate
Merged: issue 832055
Owner:
yosin@chromium.org
Closed: Apr 2018
Cc:
editing-dev@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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TextOffsetMaaping/ComputeStartPositon(LayoutBlock) crashes with multicol

Project Member Reported by ClusterFuzz, Apr 12 2018 
Detailed report: https://clusterfuzz.com/testcase?key=6302948771233792

Fuzzer: bj_broddelwerk
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Null-dereference WRITE
Crash Address: 0x000000000200
Crash State:
  chrome
  blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::FlatTreeTraversal> >
  blink::TextOffsetMapping::ComputeTextOffset
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=550071:550107

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6302948771233792

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Apr 12 2018

Components: Blink>Editing
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, Apr 12 2018

Labels: Test-Predator-Auto-Owner
Owner: yosin@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/1324be868df000cb2e070199ce2d10cd0c5a2706 (Make NextWordPosition() to utilize TextOffsetMapping).

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label. If you aren't the correct owner for this issue, please unassign yourself as soon as possible so it can be re-triaged.

Comment 3 by yosin@chromium.org, Apr 13 2018

Components: Blink>Editing>Selection
Status: Started (was: Assigned)
I'm working now...

Comment 4 by yosin@chromium.org, Apr 13 2018

Components: -Blink>Editing

Comment 5 by yosin@chromium.org, Apr 13 2018

Mergedinto: 832055
Status: Duplicate (was: Started)
Summary: TextOffsetMaaping/ComputeStartPositon(LayoutBlock) crashes with multicol (was: Null-dereference WRITE in chrome)
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