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Examples of errors detected by the V664…

Examples of errors detected by the V664 diagnostic

V664. Pointer is dereferenced on the initialization list before its check for null inside the body of a constructor function.


LLVM/Clang

V664 [CWE-476, CERT-EXP34-C] The 'valobj_sp' pointer is being dereferenced on the initialization list before it is verified against null inside the body of the constructor function. Check lines: 211, 212. LibCxx.cpp 211


typedef std::shared_ptr<lldb_private::ValueObject> ValueObjectSP;

lldb_private::formatters::LibCxxMapIteratorSyntheticFrontEnd::
    LibCxxMapIteratorSyntheticFrontEnd(lldb::ValueObjectSP valobj_sp)
    : SyntheticChildrenFrontEnd(*valobj_sp), m_pair_ptr(), m_pair_sp() {
  if (valobj_sp)
    Update();
}

Similar errors can be found in some other places:

  • V664 [CWE-476, CERT-EXP34-C] The 'valobj_sp' pointer is being dereferenced on the initialization list before it is verified against null inside the body of the constructor function. Check lines: 381, 382. LibCxx.cpp 381
  • V664 [CWE-476, CERT-EXP34-C] The 'valobj_sp' pointer is being dereferenced on the initialization list before it is verified against null inside the body of the constructor function. Check lines: 551, 552. LibCxx.cpp 551
  • V664 [CWE-476, CERT-EXP34-C] The 'valobj_sp' pointer is being dereferenced on the initialization list before it is verified against null inside the body of the constructor function. Check lines: 635, 636. LibCxx.cpp 635
  • And 14 additional diagnostic messages.

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