Fix possible integer overflow in lchown and fchown functions. For issue1747858.
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 8956e93..76609ee 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -1910,9 +1910,10 @@
static PyObject *
posix_fchown(PyObject *self, PyObject *args)
{
- int fd, uid, gid;
+ int fd;
+ long uid, gid;
int res;
- if (!PyArg_ParseTuple(args, "iii:chown", &fd, &uid, &gid))
+ if (!PyArg_ParseTuple(args, "ill:chown", &fd, &uid, &gid))
return NULL;
Py_BEGIN_ALLOW_THREADS
res = fchown(fd, (uid_t) uid, (gid_t) gid);
@@ -1933,9 +1934,9 @@
posix_lchown(PyObject *self, PyObject *args)
{
char *path = NULL;
- int uid, gid;
+ long uid, gid;
int res;
- if (!PyArg_ParseTuple(args, "etii:lchown",
+ if (!PyArg_ParseTuple(args, "etll:lchown",
Py_FileSystemDefaultEncoding, &path,
&uid, &gid))
return NULL;