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Issue metadata

Status: Verified
Owner:
Closed: Sep 24
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug

Blocking:
issue 888236



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Null-dereference READ in blink::Node::GetTreeScope

Project Member Reported by ClusterFuzz, Sep 24

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5385272974639104

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

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  blink::Node::GetTreeScope
  GetDocument
  blink::SelectorFilterParentScope::SelectorFilterParentScope
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=593509:593510

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5385272974639104

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Sep 24

Components: Blink>CSS Blink>DOM
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, Sep 24

Labels: Test-Predator-Auto-Owner
Owner: futhark@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/f76237333778b789b112dfb693a55631a69020bd (Workaround for nested remove for datalists.).

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.
Status: Fixed (was: Assigned)
Offending patch reverted for  issue 888618 
Blocking: 888236
Project Member

Comment 5 by ClusterFuzz, Sep 25

ClusterFuzz has detected this issue as fixed in range 593587:593596.

Detailed report: https://clusterfuzz.com/testcase?key=5385272974639104

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

Crash Type: Null-dereference READ
Crash Address: 0x000000000020
Crash State:
  blink::Node::GetTreeScope
  GetDocument
  blink::SelectorFilterParentScope::SelectorFilterParentScope
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=593509:593510
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=593587:593596

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5385272974639104

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 6 by ClusterFuzz, Sep 25

Labels: ClusterFuzz-Verified
Status: Verified (was: Fixed)
ClusterFuzz testcase 5385272974639104 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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