Detailed report: https://clusterfuzz.com/testcase?key=5419388758654976

Fuzzer: jesse_avalanche
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  addDelta
  SkBlitter::blitCoverageDeltas
  SkScan::DAAFillPath
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_ubsan_chrome&range=548193:548199

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5419388758654976

Issue filed automatically.

See https://github.com/google/clusterfuzz-tools for instructions to reproduce this bug locally.