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gh-145058: Add input validation to _PyImport_LazyImportModuleLevelObject (#145068)

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Stan Ulbrych 2026-02-21 12:52:40 +00:00 • committed by GitHub
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commit e1bd0cd37b
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Python/import.c
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@ -4468,6 +4468,17 @@ _PyImport_LazyImportModuleLevelObject(PyThreadState *tstate,
PyObject *globals, PyObject *locals,
PyObject *fromlist, int level)
{
assert(name != NULL);
if (!PyUnicode_Check(name)) {
_PyErr_Format(tstate, PyExc_TypeError,
"module name must be a string, got %T", name);
return NULL;
}
if (level < 0) {
_PyErr_SetString(tstate, PyExc_ValueError, "level must be >= 0");
return NULL;
}
PyObject *abs_name = get_abs_name(tstate, name, globals, level);
if (abs_name == NULL) {
return NULL;