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Issue 825166 link

Starred by 2 users

Issue metadata

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



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Null-dereference READ in blink::ScrollableAreaPainter::PaintOverflowControls

Project Member Reported by ClusterFuzz, Mar 23 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5013589556199424

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000058
Crash State:
  blink::ScrollableAreaPainter::PaintOverflowControls
  blink::BlockPainter::PaintOverflowControlsIfNeeded
  blink::BlockPainter::Paint
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=543289:543291

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5013589556199424

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Mar 23 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
Owner: schenney@chromium.org
Status: Assigned (was: Untriaged)
This is a second instance of this. I own the first one.
Project Member

Comment 3 by ClusterFuzz, May 21 2018

Labels: OS-Windows
Project Member

Comment 4 by ClusterFuzz, Jun 11 2018

ClusterFuzz has detected this issue as fixed in range 565421:565422.

Detailed report: https://clusterfuzz.com/testcase?key=5013589556199424

Fuzzer: miaubiz_svg_fuzzer
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000058
Crash State:
  blink::ScrollableAreaPainter::PaintOverflowControls
  blink::BlockPainter::PaintOverflowControlsIfNeeded
  blink::BlockPainter::Paint
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=543289:543291
Fixed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=565421:565422

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5013589556199424

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, Jun 11 2018

Labels: ClusterFuzz-Verified
Status: Verified (was: Assigned)
ClusterFuzz testcase 5013589556199424 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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