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Fix a crasher where Python code managed to infinitely recurse in C code without

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ever going back out to Python code in PyObject_Call().  Required introducing a
static RuntimeError instance so that normalizing an exception there is no
reliance on a recursive call that would put the exception system over the
recursion check itself.
This commit is contained in:
Brett Cannon 2007-09-07 04:18:30 +00:00
parent 68a6da99e6
commit 1e534b5425
11 changed files with 66 additions and 49 deletions
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6
Objects/abstract.c
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@ -1857,7 +1857,11 @@ PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw)
ternaryfunc call;
if ((call = func->ob_type->tp_call) != NULL) {
PyObject *result = (*call)(func, arg, kw);
PyObject *result;
if (Py_EnterRecursiveCall(" while calling a Python object"))
return NULL;
result = (*call)(func, arg, kw);
Py_LeaveRecursiveCall();
if (result == NULL && !PyErr_Occurred())
PyErr_SetString(
PyExc_SystemError,