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Issue 827879 link

Starred by 1 user
Status: Available
Owner: ----
Cc:
ifratric@google.com
editing-dev@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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NextSentencePosition() causes invalid range

Project Member Reported by ClusterFuzz, Apr 1 2018 
Detailed report: https://clusterfuzz.com/testcase?key=5477796909678592

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  start <= end (OUTPUT id="htmlvarNUMBER" (editable)id="htmlvarNUMBER" (editable) 
  blink::TextIteratorAlgorithm<>::TextIteratorAlgorithm
  blink::NextBoundary
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=475811:475824

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5477796909678592

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Apr 1 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 1 2018

Cc: yosin@chromium.org rlanday@chromium.org
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Make TextIterator constructor to take only proper range by yosin@chromium.org - https://chromium.googlesource.com/chromium/src/+/984f4b2c4df57ae840917a1d79f95a54e68e2c7b

Eliminate DocumentMarker and TextMatchMarker copy constructors by rlanday@chromium.org - https://chromium.googlesource.com/chromium/src/+/fa78f83615f6278ffe657bb6119d1b8339920b36

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

Comment 3 by yosin@chromium.org, Apr 2 2018

Cc: -yosin@chromium.org -rlanday@chromium.org
Components: -Blink>Editing Blink>Editing>Selection
Labels: -Pri-1 Pri-3
Status: Available (was: Untriaged)
Summary: NextSentencePosition() causes invalid range (was: CHECK failure: start <= end (OUTPUT id="htmlvarNUMBER" (editable)id="htmlvarNUMBER" (editable) )
Lower to Pri-3 since real world usage of Selection#modify() with 'sentence' is low.
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