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Issue metadata

Status: Duplicate
Merged: issue 873225
Owner:
Closed: Dec 3
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 1
Type: Bug



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Null-dereference READ in spvtools::opt::analysis::DefUseManager::UpdateDefUse

Project Member Reported by ClusterFuzz, Nov 29

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6185334020505600

Fuzzer: libFuzzer_spvtools_opt_legalization_fuzzer
Job Type: windows_libfuzzer_chrome_asan
Platform Id: windows

Crash Type: Null-dereference READ
Crash Address: 0x00000000002d
Crash State:
  spvtools::opt::analysis::DefUseManager::UpdateDefUse
  spvtools::opt::PrivateToLocalPass::GetNewType
  spvtools::opt::PrivateToLocalPass::MoveVariable
  
Sanitizer: address (ASAN)

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6185334020505600

Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing_on_windows.md for more information.
 
Components: Internals>GPU>Internals
Owner: stevenperron@google.com
Status: Assigned (was: Untriaged)
Project Member

Comment 2 by ClusterFuzz, Dec 1

Labels: -Reproducible Unreproducible
ClusterFuzz testcase 6185334020505600 appears to be flaky, updating reproducibility label.
Labels: -Unreproducible Reproducible
Please ignore the last comment about testcase being unreproducible. The testcase is still reproducible. This happened due to a code refactoring on ClusterFuzz side, and the underlying root cause is now fixed. Resetting the label back to Reproducible. Sorry about the inconvenience caused from these incorrect notifications.
Mergedinto: 873225
Status: Duplicate (was: Assigned)
The documentation for reproducing bugs on Windows was moved to: https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md

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