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Issue metadata

Status: Verified
Owner:
Closed: Mar 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Null-dereference READ in chrome

Project Member Reported by ClusterFuzz, Mar 1 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5251661547962368

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

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  chrome
  blink::Node::UpdateDistribution
  blink::ComparePositions
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=540130:540137

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5251661547962368

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 1 2018

Components: Blink>DOM 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, Mar 1 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/+/b348c20a3e9a54b876e2200ef0abc5fbafe17b05 (Make SelectionAdjuster to handle collapsed selection correctly).

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.
Project Member

Comment 3 by ClusterFuzz, Mar 5 2018

ClusterFuzz has detected this issue as fixed in range 540771:540773.

Detailed report: https://clusterfuzz.com/testcase?key=5251661547962368

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

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  chrome
  blink::Node::UpdateDistribution
  blink::ComparePositions
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=540130:540137
Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=540771:540773

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5251661547962368

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, Mar 5 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5251661547962368 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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