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Issue 814261 link

Starred by 1 user

Issue metadata

Status: Verified
Owner:
Closed: Feb 2018
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Mac
Pri: 2
Type: Bug



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Null-dereference READ in blink::LowestCommonAncestor

Project Member Reported by ClusterFuzz, Feb 21 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4670955998412800

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::LowestCommonAncestor
  SwitchToEffect
  Convert
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=537453:537464

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4670955998412800

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Feb 21 2018

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.
Labels: -Pri-1 Pri-2
Status: Available (was: Untriaged)
Another SVG NULL read with SPv1.75 just enabled.
Owner: schenney@chromium.org
Cc: schenney@chromium.org brajkumar@chromium.org
 Issue 814925  has been merged into this issue.
Project Member

Comment 5 by ClusterFuzz, Feb 26 2018

Labels: OS-Mac
Project Member

Comment 6 by ClusterFuzz, Feb 27 2018

ClusterFuzz has detected this issue as fixed in range 539400:539401.

Detailed report: https://clusterfuzz.com/testcase?key=4670955998412800

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000008
Crash State:
  blink::LowestCommonAncestor
  SwitchToEffect
  Convert
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=537453:537464
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=539400:539401

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4670955998412800

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 7 by ClusterFuzz, Feb 27 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Available)
ClusterFuzz testcase 4670955998412800 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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