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Issue metadata

Status: Duplicate
Merged: issue 779958
Owner: ----
Closed: Nov 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 2
Type: Bug



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Undefined-shift in ConstantUnion::operator<<

Project Member Reported by ClusterFuzz, Nov 1 2017

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4768962025095168

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  ConstantUnion::operator<<
  TIntermConstantUnion::fold
  TIntermediate::addBinaryMath
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=512576:512620

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4768962025095168

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.
 
Cc: kkaluri@chromium.org
Components: Internals>GPU>SwiftShader
Labels: M-64 Test-Predator-Wrong
Mergedinto: 779958
Status: Duplicate (was: Untriaged)
This looks similar to  Issue 779958 , hence merging into, 
please undo if it not the case.
Project Member

Comment 2 by ClusterFuzz, Dec 5 2017

ClusterFuzz has detected this issue as fixed in range 521492:521536.

Detailed report: https://clusterfuzz.com/testcase?key=4768962025095168

Fuzzer: libFuzzer_swiftshader_vertex_routine_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Undefined-shift
Crash Address: 
Crash State:
  ConstantUnion::operator<<
  TIntermConstantUnion::fold
  TIntermediate::addBinaryMath
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=512576:512620
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=521492:521536

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4768962025095168

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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