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Issue #18552: Check return value of PyArena_AddPyObject() in obj2ast_object().

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This commit is contained in:
Christian Heimes 2013-07-27 00:33:13 +02:00
parent 1acc129d48
commit 70c94e7896
3 changed files with 17 additions and 6 deletions
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3
Misc/NEWS
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@ -12,6 +12,9 @@ What's New in Python 3.3.3 release candidate 1?
Core and Builtins Core and Builtins
----------------- -----------------
- Issue #18552: Check return value of PyArena_AddPyObject() in
obj2ast_object().
- Issue #18560: Fix potential NULL pointer dereference in sum(). - Issue #18560: Fix potential NULL pointer dereference in sum().
- Issue #15905: Fix theoretical buffer overflow in handling of sys.argv[0], - Issue #15905: Fix theoretical buffer overflow in handling of sys.argv[0],

10
Parser/asdl_c.py
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@ -834,9 +834,13 @@ def visitModule(self, mod):
{ {
if (obj == Py_None) if (obj == Py_None)
obj = NULL; obj = NULL;
if (obj) if (obj) {
PyArena_AddPyObject(arena, obj); if (PyArena_AddPyObject(arena, obj) < 0) {
Py_XINCREF(obj); *out = NULL;
return -1;
}
Py_INCREF(obj);
}
*out = obj; *out = obj;
return 0; return 0;
} }

10
Python/Python-ast.c
View file

@ -688,9 +688,13 @@ static int obj2ast_object(PyObject* obj, PyObject** out, PyArena* arena)
{ {
if (obj == Py_None) if (obj == Py_None)
obj = NULL; obj = NULL;
if (obj) if (obj) {
PyArena_AddPyObject(arena, obj); if (PyArena_AddPyObject(arena, obj) < 0) {
Py_XINCREF(obj); *out = NULL;
return -1;
}
Py_INCREF(obj);
}
*out = obj; *out = obj;
return 0; return 0;
} }