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Issue #19428: Handle PyMarshal_Read*() errors in run_pyc_file()

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Detect also earlier PyMarshal_Read*() errors in zipimport.
This commit is contained in:
Victor Stinner 2015-03-18 13:56:25 +01:00
parent 50931f41d0
commit 5200f55024
2 changed files with 9 additions and 2 deletions
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8
Python/pythonrun.c
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@ -981,13 +981,17 @@ run_pyc_file(FILE *fp, const char *filename, PyObject *globals,
magic = PyMarshal_ReadLongFromFile(fp);
if (magic != PyImport_GetMagicNumber()) {
PyErr_SetString(PyExc_RuntimeError,
"Bad magic number in .pyc file");
if (!PyErr_Occurred())
PyErr_SetString(PyExc_RuntimeError,
"Bad magic number in .pyc file");
return NULL;
}
/* Skip mtime and size */
(void) PyMarshal_ReadLongFromFile(fp);
(void) PyMarshal_ReadLongFromFile(fp);
if (PyErr_Occurred())
return NULL;
v = PyMarshal_ReadLastObjectFromFile(fp);
if (v == NULL || !PyCode_Check(v)) {
Py_XDECREF(v);