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bpo-38858: Fix reference leak in pycore_init_types() #17286

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Merged
vstinner merged 1 commit into from
Nov 20, 2019
Merged

bpo-38858: Fix reference leak in pycore_init_types() #17286

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46 changes: 26 additions & 20 deletions Python/pylifecycle.c
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Original file line number Diff line number Diff line change
Expand Up @@ -558,7 +558,7 @@ pycore_create_interpreter(_PyRuntimeState *runtime,


static PyStatus
pycore_init_types(PyThreadState *tstate)
pycore_init_types(PyThreadState *tstate, int is_main_interp)
{
PyStatus status;

Expand All @@ -567,40 +567,46 @@ pycore_init_types(PyThreadState *tstate)
return status;
}

status = _PyTypes_Init();
if (_PyStatus_EXCEPTION(status)) {
return status;
}
if (is_main_interp) {
status = _PyTypes_Init();
if (_PyStatus_EXCEPTION(status)) {
return status;
}

if (!_PyLong_Init()) {
return _PyStatus_ERR("can't init longs");
}
if (!_PyLong_Init()) {
return _PyStatus_ERR("can't init longs");
}

status = _PyUnicode_Init();
if (_PyStatus_EXCEPTION(status)) {
return status;
status = _PyUnicode_Init();
if (_PyStatus_EXCEPTION(status)) {
return status;
}
}

status = _PyExc_Init();
if (_PyStatus_EXCEPTION(status)) {
return status;
}

if (!_PyFloat_Init()) {
return _PyStatus_ERR("can't init float");
}
if (is_main_interp) {
if (!_PyFloat_Init()) {
return _PyStatus_ERR("can't init float");
}

if (_PyStructSequence_Init() < 0) {
return _PyStatus_ERR("can't initialize structseq");
if (_PyStructSequence_Init() < 0) {
return _PyStatus_ERR("can't initialize structseq");
}
}

status = _PyErr_Init();
if (_PyStatus_EXCEPTION(status)) {
return status;
}

if (!_PyContext_Init()) {
return _PyStatus_ERR("can't init context");
if (is_main_interp) {
if (!_PyContext_Init()) {
return _PyStatus_ERR("can't init context");
}
}

return _PyStatus_OK();
Expand Down Expand Up @@ -690,7 +696,7 @@ pyinit_config(_PyRuntimeState *runtime,
config = &tstate->interp->config;
*tstate_p = tstate;

status = pycore_init_types(tstate);
status = pycore_init_types(tstate, 1);
if (_PyStatus_EXCEPTION(status)) {
return status;
}
Expand Down Expand Up @@ -1477,7 +1483,7 @@ new_interpreter(PyThreadState **tstate_p)
}
config = &interp->config;

status = pycore_init_types(tstate);
status = pycore_init_types(tstate, 0);

/* XXX The following is lax in error checking */
PyObject *modules = PyDict_New();
Expand Down