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Issue 841435 link

Starred by 3 users
Status: Available
Owner: ----
Cc:
ifratric@google.com
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Float-cast-overflow in blink::SVGPathNormalizer::DecomposeArcToCubic

Project Member Reported by ClusterFuzz, May 9 2018 
Detailed report: https://clusterfuzz.com/testcase?key=5386196340178944

Fuzzer: ifratric-browserfuzzer-v3
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Float-cast-overflow
Crash Address: 
Crash State:
  blink::SVGPathNormalizer::DecomposeArcToCubic
  blink::SVGPathNormalizer::EmitSegment
  blink::ExecuteQuery
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=552707:552711

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5386196340178944

Issue filed automatically.

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

Comment 1 by ClusterFuzz, May 9 2018

Components: Blink>SVG
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.

Comment 2 by schenney@chromium.org, May 9 2018

Status: Available (was: Untriaged)
We probably should not try to process NaN, and reject the path entirely.

Comment 3 by f...@opera.com, May 11 2018 

I thought this was about this line:

int segments = ceilf(...);

but I didn't check the report.
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