Mercurial > cpython-lru_cache-weakref
diff Python/marshal.c @ 56344:9130fe9c58bf 2.6
Issue #7019: An attempt to unmarshal bad long data could produce
unnormalized PyLong objects; make it raise ValueError instead.
| author | Mark Dickinson <dickinsm@gmail.com> |
|---|---|
| date | Sat, 03 Oct 2009 08:15:49 +0000 |
| parents | f50edd4bb48f |
| children | e38335d4df91 |
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--- a/Python/marshal.c Sat Oct 03 08:02:53 2009 +0000 +++ b/Python/marshal.c Sat Oct 03 08:15:49 2009 +0000 @@ -589,7 +589,8 @@ ob->ob_size = n; for (i = 0; i < size; i++) { int digit = r_short(p); - if (digit < 0) { + if (digit < 0 || + (digit == 0 && i == size-1)) { Py_DECREF(ob); PyErr_SetString(PyExc_ValueError, "bad marshal data");