Detailed report: https://clusterfuzz.com/testcase?key=4727161186156544

Fuzzer: inferno_canvas_wrecker
Job Type: linux_ubsan_vptr_chrome
Platform Id: linux

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

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4727161186156544

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.