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gh-106168: PyTuple_SET_ITEM() now checks the index (#106164)

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PyTuple_SET_ITEM() and PyList_SET_ITEM() now check the index argument
with an assertion if Python is built in debug mode or is built with
assertions.

* list_extend() and _PyList_AppendTakeRef() now set the list size
  before calling PyList_SET_ITEM().
* PyStructSequence_GetItem() and PyStructSequence_SetItem() now check
  the index argument: must be lesser than REAL_SIZE(op).
* PyStructSequence_GET_ITEM() and PyStructSequence_SET_ITEM() are now
  aliases to PyStructSequence_GetItem() and
  PyStructSequence_SetItem().
This commit is contained in:
Victor Stinner 2023-06-28 03:45:57 +02:00 • committed by GitHub
parent 161012fc25
commit 3f8483cad2
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10 changed files with 63 additions and 24 deletions
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2
Include/internal/pycore_list.h
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@ -49,8 +49,8 @@ _PyList_AppendTakeRef(PyListObject *self, PyObject *newitem)
Py_ssize_t allocated = self->allocated;
assert((size_t)len + 1 < PY_SSIZE_T_MAX);
if (allocated > len) {
PyList_SET_ITEM(self, len, newitem);
Py_SET_SIZE(self, len + 1);
PyList_SET_ITEM(self, len, newitem);
return 0;
}
return _PyList_AppendTakeRefListResize(self, newitem);