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Closes release blocker #3627.

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Merged revisions 65335 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

TESTED=./python -E -tt ./Lib/test/regrtest.py -uall (both debug and opt)

........
  r65335 | neal.norwitz | 2008-07-31 10:17:14 -0700 (Thu, 31 Jul 2008) | 1 line

  Security patches from Apple:  prevent int overflow when allocating memory
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This commit is contained in:
Neal Norwitz 2008-08-24 07:08:55 +00:00
parent 06db799a53
commit 3ce5d9207e
11 changed files with 201 additions and 26 deletions
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5
Objects/tupleobject.c
View file

@ -60,11 +60,12 @@ PyTuple_New(register Py_ssize_t size)
Py_ssize_t nbytes = size * sizeof(PyObject *);
/* Check for overflow */
if (nbytes / sizeof(PyObject *) != (size_t)size ||
(nbytes += sizeof(PyTupleObject) - sizeof(PyObject *))
<= 0)
(nbytes > PY_SSIZE_T_MAX - sizeof(PyTupleObject) - sizeof(PyObject *)))
{
return PyErr_NoMemory();
}
nbytes += sizeof(PyTupleObject) - sizeof(PyObject *);
op = PyObject_GC_NewVar(PyTupleObject, &PyTuple_Type, size);
if (op == NULL)
return NULL;