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Issue 857307 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Jul 5
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug



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Null-dereference READ in blink::CanvasRenderingContext2D::DrawTextInternal

Project Member Reported by ClusterFuzz, Jun 28 2018

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=5186284918931456

Fuzzer: inferno_canvas_wrecker
Job Type: linux_msan_chrome
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  blink::CanvasRenderingContext2D::DrawTextInternal
  blink::CanvasRenderingContext2D::fillText
  blink::V8CanvasRenderingContext2D::fillTextMethodCallback
  
Sanitizer: memory (MSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5186284918931456

Issue filed automatically.

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

Note: This crash might not be reproducible with the provided testcase. That said, for the past 14 days we've been seeing this crash frequently. If you are unable to reproduce this, please try a speculative fix based on the crash stacktrace in the report. The fix can be verified by looking at the crash statistics in the report, a day after the fix is deployed. We will auto-close the bug if the crash is not seen for 14 days.
 
Project Member

Comment 1 by ClusterFuzz, Jun 28 2018

Components: Blink>Canvas
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.
Cc: kkaluri@chromium.org
Components: Blink>JavaScript
Labels: Test-Predator-Wrong
Project Member

Comment 3 by ClusterFuzz, Jul 3

Labels: OS-Windows
Status: WontFix (was: Untriaged)
Clusterfuzz fails to reproduce.

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