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Issue 876698 link

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Issue metadata

Status: Duplicate
Merged: issue 873225
Owner: ----
Closed: Aug 24
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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

Project Member Reported by ClusterFuzz, Aug 22

Issue description

Detailed report: https://clusterfuzz.com/testcase?key=6358639972188160

Fuzzer: libFuzzer_spvtools_opt_legalization_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  spvtools::opt::Instruction::opcode
  spvtools::opt::Instruction::GetBaseAddress
  spvtools::opt::MemPass::GetPtr
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=580292:580305

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6358639972188160

Issue filed automatically.

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

Comment 1 by ClusterFuzz, Aug 22

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 2 by ClusterFuzz, Aug 22

Cc: d...@everburning.com
Labels: Test-Predator-Auto-CC
Automatically adding ccs based on suspected regression changelists:

Remove using std::<foo> statements. (#1756) by dj2@everburning.com - https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools/+/a5a5ea0e2dfce9c755a88af1074ebe68a44d2ed9

If this is incorrect, please let us know why and apply the Test-Predator-Wrong-CLs label.
Cc: dsinclair@chromium.org stevenperron@google.com kkaluri@chromium.org
Mergedinto: 873225
Status: Duplicate (was: Untriaged)
With reference to the  Issue 874022 , merging this issue into 873225
Project Member

Comment 4 by ClusterFuzz, Aug 29

ClusterFuzz has detected this issue as fixed in range 586353:586375.

Detailed report: https://clusterfuzz.com/testcase?key=6358639972188160

Fuzzer: libFuzzer_spvtools_opt_legalization_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Null-dereference READ
Crash Address: 0x000000000028
Crash State:
  spvtools::opt::Instruction::opcode
  spvtools::opt::Instruction::GetBaseAddress
  spvtools::opt::MemPass::GetPtr
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=580292:580305
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=586353:586375

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=6358639972188160

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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