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Issue #29044: Fix a use-after-free in string '%c' formatter.

This commit is contained in:
Xiang Zhang 2016-12-22 15:30:47 +08:00
parent c67983b829
commit ea1cf87030
1 changed files with 4 additions and 3 deletions
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5
Objects/unicodeobject.c
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@ -14213,11 +14213,12 @@ formatchar(PyObject *v)
if (iobj == NULL) { if (iobj == NULL) {
goto onError; goto onError;
} }
v = iobj; x = PyLong_AsLong(iobj);
Py_DECREF(iobj); Py_DECREF(iobj);
} }
/* Integer input truncated to a character */ else {
x = PyLong_AsLong(v); x = PyLong_AsLong(v);
}
if (x == -1 && PyErr_Occurred()) if (x == -1 && PyErr_Occurred())
goto onError; goto onError;