Bug Summary

File:build/../torch/csrc/utils/tensor_apply.cpp
Warning:line 35, column 30
PyObject ownership leak with reference count of 1

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name tensor_apply.cpp -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -analyzer-output=html -analyzer-checker=python -analyzer-disable-checker=deadcode -analyzer-config prune-paths=true,suppress-c++-stdlib=true,suppress-inlined-defensive-checks=false,suppress-null-return-paths=false,crosscheck-with-z3=true,model-path=/opt/pyrefcon/lib/pyrefcon/models/models -analyzer-config experimental-enable-naive-ctu-analysis=true,ctu-dir=/tmp/pyrefcon/pytorch/csa-scan,ctu-index-name=/tmp/pyrefcon/pytorch/csa-scan/externalDefMap.txt,ctu-invocation-list=/tmp/pyrefcon/pytorch/csa-scan/invocations.yaml,display-ctu-progress=false -setup-static-analyzer -analyzer-config-compatibility-mode=true -mrelocation-model pic -pic-level 2 -fhalf-no-semantic-interposition -mframe-pointer=none -relaxed-aliasing -fno-rounding-math -ffp-exception-behavior=ignore -mconstructor-aliases -munwind-tables -target-cpu x86-64 -tune-cpu generic -debugger-tuning=gdb -fcoverage-compilation-dir=/tmp/pyrefcon/pytorch/build -resource-dir /opt/pyrefcon/lib/clang/13.0.0 -isystem third_party/gloo -isystem ../cmake/../third_party/gloo -isystem ../cmake/../third_party/googletest/googlemock/include -isystem ../cmake/../third_party/googletest/googletest/include -isystem ../third_party/protobuf/src -isystem ../third_party/gemmlowp -isystem ../third_party/neon2sse -isystem ../third_party/XNNPACK/include -isystem ../third_party -isystem ../cmake/../third_party/eigen -isystem /opt/pyrefcon/lib/pyrefcon/models/python3.8 -isystem /usr/lib/python3/dist-packages/numpy/core/include -isystem ../cmake/../third_party/pybind11/include -isystem /usr/lib/x86_64-linux-gnu/openmpi/include/openmpi -isystem /usr/lib/x86_64-linux-gnu/openmpi/include -isystem ../third_party/ideep/mkl-dnn/include -isystem ../third_party/ideep/include -D BUILDING_TESTS -D FMT_HEADER_ONLY=1 -D HAVE_MALLOC_USABLE_SIZE=1 -D HAVE_MMAP=1 -D HAVE_SHM_OPEN=1 -D HAVE_SHM_UNLINK=1 -D MINIZ_DISABLE_ZIP_READER_CRC32_CHECKS -D ONNXIFI_ENABLE_EXT=1 -D ONNX_ML=1 -D ONNX_NAMESPACE=onnx_torch -D THP_BUILD_MAIN_LIB -D USE_C10D -D USE_C10D_GLOO -D USE_C10D_MPI -D USE_DISTRIBUTED -D USE_EXTERNAL_MZCRC -D USE_NUMPY -D USE_RPC -D USE_TENSORPIPE -D USE_VALGRIND -D _FILE_OFFSET_BITS=64 -D torch_python_EXPORTS -I aten/src -I ../aten/src -I . -I ../ -I ../cmake/../third_party/benchmark/include -I caffe2/contrib/aten -I ../third_party/onnx -I third_party/onnx -I ../third_party/foxi -I third_party/foxi -I ../torch/.. -I ../torch/../aten/src -I ../torch/../aten/src/TH -I caffe2/aten/src -I third_party -I ../torch/../third_party/valgrind-headers -I ../torch/../third_party/gloo -I ../torch/../third_party/onnx -I ../torch/csrc -I ../torch/csrc/api/include -I ../torch/lib -I ../torch/lib/libshm -I ../torch/csrc/distributed -I ../torch/csrc/api -I ../c10/.. -I third_party/ideep/mkl-dnn/include -I ../third_party/ideep/mkl-dnn/src/../include -I ../torch/lib/libshm/../../../torch/lib -I ../third_party/fmt/include -D USE_PTHREADPOOL -D NDEBUG -D USE_KINETO -D LIBKINETO_NOCUPTI -D USE_FBGEMM -D USE_QNNPACK -D USE_PYTORCH_QNNPACK -D USE_XNNPACK -D SYMBOLICATE_MOBILE_DEBUG_HANDLE -D HAVE_AVX_CPU_DEFINITION -D HAVE_AVX2_CPU_DEFINITION -D NDEBUG -D NDEBUG -D CAFFE2_USE_GLOO -D HAVE_GCC_GET_CPUID -D USE_AVX -D USE_AVX2 -D TH_HAVE_THREAD -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/x86_64-linux-gnu/c++/10 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../include/c++/10/backward -internal-isystem /opt/pyrefcon/lib/clang/13.0.0/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/10/../../../../x86_64-linux-gnu/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -Wno-narrowing -Wall -Wextra -Werror=return-type -Wno-missing-field-initializers -Wno-type-limits -Wno-array-bounds -Wno-unknown-pragmas -Wno-sign-compare -Wno-unused-parameter -Wno-unused-variable -Wno-unused-function -Wno-unused-result -Wno-unused-local-typedefs -Wno-strict-overflow -Wno-strict-aliasing -Wno-error=deprecated-declarations -Wno-stringop-overflow -Wno-psabi -Wno-error=pedantic -Wno-error=redundant-decls -Wno-error=old-style-cast -Wno-unused-but-set-variable -Wno-maybe-uninitialized -Werror=format -Werror=cast-function-type -Wno-stringop-overflow -Wno-write-strings -Wno-strict-aliasing -w -std=gnu++14 -fdeprecated-macro -fdebug-compilation-dir=/tmp/pyrefcon/pytorch/build -ferror-limit 19 -fvisibility-inlines-hidden -fopenmp -fopenmp-cuda-parallel-target-regions -pthread -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -faligned-allocation -fcolor-diagnostics -vectorize-loops -vectorize-slp -faddrsig -D__GCC_HAVE_DWARF2_CFI_ASM=1 -o /tmp/pyrefcon/pytorch/csa-scan/reports -x c++ ../torch/csrc/utils/tensor_apply.cpp

../torch/csrc/utils/tensor_apply.cpp

1#include <torch/csrc/utils/tensor_apply.h>
2
3#include <ATen/TensorUtils.h>
4#include <ATen/ExpandUtils.h>
5#include <c10/util/irange.h>
6
7#include <torch/csrc/Exceptions.h>
8#include <torch/csrc/utils/python_numbers.h>
9#include <torch/csrc/utils/python_scalars.h>
10
11using namespace at;
12
13namespace torch { namespace utils {
14
15struct StridedData {
16 StridedData(const Tensor & tensor)
17 : data(tensor.data_ptr())
18 , strides(tensor.strides())
19 , elementSize(tensor.element_size()) {}
20
21 void* data;
22 IntArrayRef strides;
23 int64_t elementSize;
24
25 void step(int dim) {
26 data = (char*)data + (strides[dim] * elementSize);
27 }
28};
29
30template<size_t N>
31static void recursive_apply(IntArrayRef sizes, ScalarType scalarType, int64_t dim,
32 PyObject* fn, std::array<StridedData, N> strided_data) {
33 int64_t ndim = sizes.size();
34 if (dim == ndim) {
1
Assuming 'dim' is equal to 'ndim'
2
Taking true branch
35 auto args = THPObjectPtr(PyTuple_New(N));
3
Calling 'PyTuple_New'
5
Returning from 'PyTuple_New'
10
PyObject ownership leak with reference count of 1
36 if (!args) throw python_error();
6
Assuming the condition is false
7
Taking false branch
37 for(const auto i : c10::irange(N)) {
38 PyObject* arg = load_scalar(strided_data[i].data, scalarType);
39 if (!arg) throw python_error();
8
Assuming 'arg' is null
9
Taking true branch
40 PyTuple_SET_ITEM(args.get(), i, arg)PyTuple_SetItem(args.get(), i, arg);
41 }
42 auto ret = THPObjectPtr(PyObject_CallObject(fn, args.get()));
43 if (!ret) throw python_error();
44 store_scalar(strided_data[0].data, scalarType, ret.get());
45 return;
46 }
47
48 auto n = sizes[dim];
49 for(const auto i : c10::irange(n)) {
50 (void)i; // Suppress unused variable warning
51 recursive_apply(sizes, scalarType, dim + 1, fn, strided_data);
52 for (auto& td : strided_data) {
53 td.step(dim);
54 }
55 }
56}
57
58const Tensor & apply_(const Tensor & self, PyObject* fn) {
59 if (self.is_meta()) {
60 return self; // Just skip
61 }
62 if (!self.device().is_cpu()) {
63 throw TypeError("apply_ is only implemented on CPU tensors");
64 }
65 auto scalarType = self.scalar_type();
66 recursive_apply<1>(self.sizes(), scalarType, 0, fn, {{ self }});
67 return self;
68}
69
70const Tensor & map_(const Tensor & self, const Tensor & other_, PyObject* fn) {
71 if (!other_.options().type_equal(self.options())) {
72 throw TypeError("map_: expected %s for 'other' (got %s)",
73 self.toString().c_str(), other_.toString().c_str());
74 }
75 if (self.is_meta()) {
76 return self; // Just skip
77 }
78 if (!self.device().is_cpu()) {
79 throw TypeError("map_ is only implemented on CPU tensors");
80 }
81 c10::MaybeOwned<Tensor> other = expand_inplace(self, other_, "map_");
82 auto scalarType = self.scalar_type();
83 recursive_apply<2>(self.sizes(), scalarType, 0, fn, {{ self, *other }});
84 return self;
85}
86
87const Tensor & map2_(const Tensor & self, const Tensor & x_, const Tensor & y_, PyObject* fn) {
88 if (!x_.options().type_equal(self.options())) {
89 throw TypeError("map2_: expected %s for argument 'x' (got %s)",
90 self.toString().c_str(), x_.toString().c_str());
91 }
92 if (!y_.options().type_equal(self.options())) {
93 throw TypeError("map2_: expected %s for argument 'y' (got %s)",
94 self.toString().c_str(), y_.toString().c_str());
95 }
96 if (self.is_meta()) {
97 return self; // Just skip
98 }
99 if (!self.device().is_cpu() || !x_.device().is_cpu() || !y_.device().is_cpu()) {
100 throw TypeError("map2_ is only implemented on CPU tensors");
101 }
102 auto others = expand_inplace(self, x_, y_, "map2_");
103 auto scalarType = self.scalar_type();
104 recursive_apply<3>(self.sizes(), scalarType, 0, fn, {{ self, *std::get<0>(others), *std::get<1>(others) }});
105 return self;
106}
107
108}} // namespace torch::utils

/opt/pyrefcon/lib/pyrefcon/models/models/PyTuple_New.model

1#ifndef PyTuple_New
2struct _object;
3typedef struct _object PyObject;
4PyObject* clang_analyzer_PyObject_New_Reference();
5PyObject* PyTuple_New(Py_ssize_t len) {
6 return clang_analyzer_PyObject_New_Reference();
4
Setting reference count to 1
7}
8#else
9#warning "API PyTuple_New is defined as a macro."
10#endif