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Issue 860487 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner: ----
Closed: Jul 10
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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

Project Member Reported by ClusterFuzz, Jul 5

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6628547603726336

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::strokeText
  blink::V8CanvasRenderingContext2D::strokeTextMethodCallback
  
Sanitizer: memory (MSAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6628547603726336

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, Jul 5

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: pnangunoori@chromium.org
Labels: Test-Predator-Wrong
Owner: clemensh@chromium.org
Status: Assigned (was: Untriaged)
This issue seems to be similar to the  Issue 857307 .
clemensh@ -- Could you please take a look into this issue.

Thanks!
Owner: ----
Status: Untriaged (was: Assigned)
Not reproducible, and I don't see how it's related to v8. From the stack trace it looks like DrawingCanvas() returned a nullptr.
Not actionable from v8's side. Back to the triaging queue. Might just be closed as WontFix.
Status: WontFix (was: Untriaged)
Can't repro this crash, we don't have a minimal test case. Closing as WontFix.
Cc: kkaluri@chromium.org
 Issue 863244  has been merged into this issue.
 Issue 863731  has been merged into this issue.

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