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Issue metadata

Status: Duplicate
Merged: issue 873225
Owner:
Closed: Nov 5
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows
Pri: 1
Type: Bug



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Null-dereference READ in spvtools::opt::Instruction::GetSingleWordInOperand

Project Member Reported by ClusterFuzz, Oct 20

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=4656535152885760

Fuzzer: libFuzzer_spvtools_opt_performance_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  spvtools::opt::Instruction::GetSingleWordInOperand
  spvtools::opt::ScalarReplacementPass::GetStorageType
  spvtools::opt::ScalarReplacementPass::ReplaceWholeStore
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=589988:590303

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4656535152885760

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Oct 20

Labels: OS-Windows
Project Member

Comment 2 by ClusterFuzz, Oct 20

Components: Internals>GPU>Internals
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.
Project Member

Comment 3 by ClusterFuzz, Oct 20

Cc: dsinclair@chromium.org vmi...@chromium.org piman@chromium.org
Labels: ClusterFuzz-Auto-CC
Automatically adding ccs based on OWNERS file / target commit history.

If this is incorrect, please add ClusterFuzz-Wrong label.
Owner: stevenperron@google.com
Status: Assigned (was: Untriaged)
Mergedinto: 873225
Status: Duplicate (was: Assigned)
Project Member

Comment 7 by ClusterFuzz, Nov 8

ClusterFuzz has detected this issue as fixed in range 606045:606059.

Detailed report: https://clusterfuzz.com/testcase?key=4656535152885760

Fuzzer: libFuzzer_spvtools_opt_performance_fuzzer
Job Type: libfuzzer_chrome_ubsan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000000
Crash State:
  spvtools::opt::Instruction::GetSingleWordInOperand
  spvtools::opt::ScalarReplacementPass::GetStorageType
  spvtools::opt::ScalarReplacementPass::ReplaceWholeStore
  
Sanitizer: undefined (UBSAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=589988:590303
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_ubsan&range=606045:606059

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4656535152885760

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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