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Issue 806588 link

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Issue metadata

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



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Null-dereference READ during FormatBlock command

Project Member Reported by ClusterFuzz, Jan 28 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4724215857807360

Fuzzer: inferno_twister
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  chrome
  blink::Node::firstChild
  blink::Node* blink::NodeTraversal::ChildAtTemplate<blink::Node const>
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=523197:523221

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4724215857807360

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Jan 28 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, Jan 28 2018

Labels: Test-Predator-Auto-Owner
Owner: hirosh...@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/bb33dbbbcf6f36daa5d7d116769b72a3c91ed9dc (Remove ScriptStreamer::resource_).

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.
Cc: hirosh...@chromium.org
Components: -Blink>Editing -Blink>DOM Blink>Editing>Command
Labels: -Pri-1 Test-Predator-Wrong Pri-3
Owner: ----
Summary: Null-dereference READ during FormatBlock command (was: Null-dereference READ in chrome)
Editing command is a big source of crashing.

Crashes with CompositeEditCommand::Apply() in the stack trace should be triaged to component Blink>Editing>Command first.

Applying P3 and Available due to low usage of document.execCommand('FormatBlock')
Status: Available (was: Assigned)
Project Member

Comment 5 by ClusterFuzz, Feb 13 2018

ClusterFuzz has detected this issue as fixed in range 536251:536259.

Detailed report: https://clusterfuzz.com/testcase?key=4724215857807360

Fuzzer: inferno_twister
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000010
Crash State:
  chrome
  blink::Node::firstChild
  blink::Node* blink::NodeTraversal::ChildAtTemplate<blink::Node const>
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=523197:523221
Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=536251:536259

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4724215857807360

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, Feb 13 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 4724215857807360 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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