Detailed report: https://clusterfuzz.com/testcase?key=5814490568065024

Project: chromeos
Fuzzer: libFuzzer_chromeos_virgl_fuzzer
Fuzz target binary: virgl_fuzzer
Job Type: libfuzzer_ubsan_chromeos
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  _mesa_ColorMaski
  vrend_hw_emit_blend
  vrend_decode_block
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_ubsan_chromeos&range=3073073:3073601

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5814490568065024

Issue filed automatically.

See https://chromium.googlesource.com/chromiumos/docs/+/master/fuzzing.md#Reproducing-crashes-from-ClusterFuzz for instructions to reproduce this bug locally.