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Issue metadata

Status: Verified
Owner:
Closed: Dec 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 1
Type: Bug



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Null-dereference WRITE in blink::PrePaintTreeWalk::Walk

Project Member Reported by ClusterFuzz, Dec 13 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5772934512902144

Fuzzer: inferno_webbot
Job Type: windows_asan_chrome
Platform Id: windows

Crash Type: Null-dereference WRITE
Crash Address: 0x0000009d
Crash State:
  blink::PrePaintTreeWalk::Walk
  blink::PrePaintTreeWalk::Walk
  blink::PrePaintTreeWalk::Walk
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=523649:523663

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5772934512902144

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Dec 13 2017

Labels: OS-Mac OS-Linux
Project Member

Comment 2 by ClusterFuzz, Dec 13 2017

Labels: M-65 ReleaseBlock-Beta ClusterFuzz-Top-Crash
Testcase 5772934512902144 is a top crash on ClusterFuzz for linux, mac and windows platforms. Please prioritize fixing this crash.

Marking this crash as a Beta release blocker.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
Project Member

Comment 3 by ClusterFuzz, Dec 13 2017

Components: Blink>Paint
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 4 by ClusterFuzz, Dec 13 2017

Labels: Test-Predator-Auto-Owner
Owner: wangxianzhu@chromium.org
Status: Assigned (was: Untriaged)
Automatically assigning owner based on suspected regression changelist https://chromium.googlesource.com/chromium/src/+/3b36628a543143f75ebba66f852271c49a655dd0 ([PE] Don't ignore clip change not across transform boundary).

If this is incorrect, please remove the owner and apply the Test-Predator-Wrong-CLs label.
Project Member

Comment 5 by ClusterFuzz, Dec 13 2017

ClusterFuzz has detected this issue as fixed in range 523693:523700.

Detailed report: https://clusterfuzz.com/testcase?key=5772934512902144

Fuzzer: inferno_webbot
Job Type: windows_asan_chrome
Platform Id: windows

Crash Type: Null-dereference WRITE
Crash Address: 0x0000009d
Crash State:
  blink::PrePaintTreeWalk::Walk
  blink::PrePaintTreeWalk::Walk
  blink::PrePaintTreeWalk::Walk
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=523649:523663
Fixed: https://clusterfuzz.com/revisions?job=windows_asan_chrome&range=523693:523700

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5772934512902144

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, Dec 13 2017

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5772934512902144 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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