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Issue #15989: Fixed some scarcely probable integer overflows.

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It is very unlikely that they can occur in real code for now.
This commit is contained in:
Serhiy Storchaka 2015-09-06 21:25:30 +03:00
parent 7827a5b7c2
commit 56f6e76c68
7 changed files with 27 additions and 23 deletions
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10
Python/pythonrun.c
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@ -431,7 +431,7 @@ static int
parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename,
int *lineno, int *offset, PyObject **text)
{
long hold;
int hold;
PyObject *v;
_Py_IDENTIFIER(msg);
_Py_IDENTIFIER(filename);
@ -464,11 +464,11 @@ parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename,
v = _PyObject_GetAttrId(err, &PyId_lineno);
if (!v)
goto finally;
hold = PyLong_AsLong(v);
hold = _PyLong_AsInt(v);
Py_DECREF(v);
if (hold < 0 && PyErr_Occurred())
goto finally;
*lineno = (int)hold;
*lineno = hold;
v = _PyObject_GetAttrId(err, &PyId_offset);
if (!v)
@ -477,11 +477,11 @@ parse_syntax_error(PyObject *err, PyObject **message, PyObject **filename,
*offset = -1;
Py_DECREF(v);
} else {
hold = PyLong_AsLong(v);
hold = _PyLong_AsInt(v);
Py_DECREF(v);
if (hold < 0 && PyErr_Occurred())
goto finally;
*offset = (int)hold;
*offset = hold;
}
v = _PyObject_GetAttrId(err, &PyId_text);