diff options
Diffstat (limited to 'Modules/_fileio.c')
| -rw-r--r-- | Modules/_fileio.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Modules/_fileio.c b/Modules/_fileio.c index 2bda155763..c46f17e2b0 100644 --- a/Modules/_fileio.c +++ b/Modules/_fileio.c @@ -375,6 +375,12 @@ fileio_read(PyFileIOObject *self, PyObject *args) if (!PyArg_ParseTuple(args, "i", &size)) return NULL; + if (size < 0) { + PyErr_SetString(PyExc_ValueError, + "negative read count"); + return NULL; + } + bytes = PyBytes_FromStringAndSize(NULL, size); if (bytes == NULL) return NULL; |