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Issue metadata

Status: Verified
Owner: ----
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 3
Type: Bug



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InsertUnorderedList crashes with unusual HTML

Project Member Reported by ClusterFuzz, Dec 7 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5696335742500864

Fuzzer: bj_broddelwerk
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >::Te
  blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >::Ra
  blink::CompositeEditCommand::MoveParagraphs
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=454233:454289

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5696335742500864

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 7 2017

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, Dec 7 2017

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

Revert "Import web-platform-tests/editing/." by grt@chromium.org - https://chromium.googlesource.com/chromium/src/+/7c02de6787d8499ce5e8be12063db19daeace77e

Make PositionIterator to skip contents of INPUT/SELECT/TEXTAREA by yosin@chromium.org - https://chromium.googlesource.com/chromium/src/+/2211504ac2b999a125b2215ce7f6be9e50878fea

If this is incorrect, please apply the Test-Predator-Wrong-CLs label.

Comment 3 by yosin@chromium.org, Dec 7 2017

Cc: -yosin@chromium.org
Components: -Blink>Editing Blink>Editing>Command
Labels: -Pri-1 OS-Linux OS-Windows Pri-3
Status: Available (was: Untriaged)
Summary: InsertUnorderedList crashes with unusual HTML (was: Null-dereference READ in blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >::Te)
Lower to Pri-3 since real world usage of InsertUnorderedList is low.

Hit DCHECK_NE(node, exclude_node) in CompositeEditCommand::RemoveNodeAndPruneAncestors() where
node is TEXTAREA class="CLASS11".
Project Member

Comment 4 by ClusterFuzz, Dec 28 2017

ClusterFuzz has detected this issue as fixed in range 526277:526280.

Detailed report: https://clusterfuzz.com/testcase?key=5696335742500864

Fuzzer: bj_broddelwerk
Job Type: mac_asan_chrome
Platform Id: mac

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >::Te
  blink::TextIteratorAlgorithm<blink::EditingAlgorithm<blink::NodeTraversal> >::Ra
  blink::CompositeEditCommand::MoveParagraphs
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=454233:454289
Fixed: https://clusterfuzz.com/revisions?job=mac_asan_chrome&range=526277:526280

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5696335742500864

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 5 by ClusterFuzz, Dec 28 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 5696335742500864 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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