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Issue metadata

Status: Verified
Owner: ----
Closed: Feb 2018
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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Null-dereference READ in blink::RootEditableElement

Project Member Reported by ClusterFuzz, Jan 29 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5739398956843008

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  blink::RootEditableElement
  blink::DeleteSelectionCommand::RemoveRedundantBlocks
  blink::DeleteSelectionCommand::DoApply
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=520050:520064

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5739398956843008

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jan 29 2018

Labels: Test-Predator-Auto-Owner
Owner: yoichio@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/e4978a95aa5d30e4d7220257ed0bb5eec755fb66 (Compute selection bounds straightforward.).

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.
Labels: -Pri-1 Pri-3
Owner: ----
Status: Available (was: Assigned)
Document::execCommand usage is low.
Project Member

Comment 3 by ClusterFuzz, Feb 23 2018

ClusterFuzz has detected this issue as fixed in range 538633:538636.

Detailed report: https://clusterfuzz.com/testcase?key=5739398956843008

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  blink::RootEditableElement
  blink::DeleteSelectionCommand::RemoveRedundantBlocks
  blink::DeleteSelectionCommand::DoApply
  
Sanitizer: memory (MSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=520050:520064
Fixed: https://clusterfuzz.com/revisions?job=linux_msan_chrome&range=538633:538636

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5739398956843008

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 4 by ClusterFuzz, Feb 23 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 5739398956843008 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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