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Issue metadata

Status: Verified
Owner: ----
Closed: Sep 2
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 3
Type: Bug



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Null-dereference READ in chrome

Project Member Reported by ClusterFuzz, Mar 20 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6026933268381696

Fuzzer: mbarbella_js_mutation_layout
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000204
Crash State:
  chrome
  blink::Document::UpdateStyleAndLayoutTreeIgnorePendingStylesheets
  blink::Document::UpdateStyleAndLayoutIgnorePendingStylesheets
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=523878:523922

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6026933268381696

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 20 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 20 2018

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

Drop UseCounter usage measurement on view-source pages. by loonybear@chromium.org - https://chromium.googlesource.com/chromium/src/+/3f921557c4cb83453bfce0fe8637e489a90064ad

Make ResourceResponse's non-null ctor arguments optional except for URL by hiroshige@chromium.org - https://chromium.googlesource.com/chromium/src/+/4ccc82e6053201317cc32e95515e8b8bd7749bf5

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.

Comment 3 by rakina@chromium.org, Mar 22 2018

Labels: -Pri-1 Pri-3
Status: Available (was: Untriaged)
Project Member

Comment 4 by ClusterFuzz, Sep 2

ClusterFuzz has detected this issue as fixed in range 587358:587382.

Detailed report: https://clusterfuzz.com/testcase?key=6026933268381696

Fuzzer: mbarbella_js_mutation_layout
Job Type: linux_cfi_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000204
Crash State:
  chrome
  blink::Document::UpdateStyleAndLayoutTreeIgnorePendingStylesheets
  blink::Document::UpdateStyleAndLayoutIgnorePendingStylesheets
  
Sanitizer: cfi (CFI)

Regressed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=523878:523922
Fixed: https://clusterfuzz.com/revisions?job=linux_cfi_chrome&range=587358:587382

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6026933268381696

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, Sep 2

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 6026933268381696 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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