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Examples of errors detected by the V102…

Examples of errors detected by the V1023 diagnostic

V1023. A pointer without owner is added to the container by the 'emplace_back' method. A memory leak will occur in case of an exception.


LLVM/Clang

V1023 [CWE-460] A pointer without owner is added to the 'Strategies' container by the 'emplace_back' method. A memory leak will occur in case of an exception. llvm-isel-fuzzer.cpp 58


std::unique_ptr<IRMutator> createISelMutator() {
  ....
  std::vector<std::unique_ptr<IRMutationStrategy>> Strategies;
  Strategies.emplace_back(
      new InjectorIRStrategy(InjectorIRStrategy::getDefaultOps()));
  ....
}

Similar errors can be found in some other places:

  • V1023 [CWE-460] A pointer without owner is added to the 'Passes' container by the 'emplace_back' method. A memory leak will occur in case of an exception. PassManager.h 546
  • V1023 [CWE-460] A pointer without owner is added to the 'AAs' container by the 'emplace_back' method. A memory leak will occur in case of an exception. AliasAnalysis.h 324
  • V1023 [CWE-460] A pointer without owner is added to the 'Entries' container by the 'emplace_back' method. A memory leak will occur in case of an exception. DWARFDebugFrame.cpp 519
  • And 18 additional diagnostic messages.

Dlib

V1023 A pointer without owner is added to the 'epa' container by the 'emplace_back' method. A memory leak will occur in case of an exception. tensor_tools.h 1665


void set(std::vector<tensor*> items)
{
  ....
  epa.emplace_back(new enable_peer_access(*g[0], *g[i]));
  ....
}

iutest

V1023 A pointer without owner is added to the 'pools' container by the 'emplace_back' method. A memory leak will occur in case of an exception. entt.hpp 17114


template<typename Event>
pool_handler<Event> & assure() {
  ....
  return static_cast<pool_handler<Event> &>(it == pools.cend() ?
    *pools.emplace_back(new pool_handler<Event>{}) : **it);
  ....
}

Similar errors can be found in some other places:

  • V1023 A pointer without owner is added to the 'pools' container by the 'emplace_back' method. A memory leak will occur in case of an exception. entt.hpp 17407

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