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| author | Benjamin Peterson <benjamin@python.org> | 2015-02-02 01:59:00 (GMT) |
|---|---|---|
| committer | Benjamin Peterson <benjamin@python.org> | 2015-02-02 01:59:00 (GMT) |
| commit | 021dec1c96801401d07c8b84cb51115de641bce9 (patch) | |
| tree | 91b684c4d27c648fb7a57bbfdcdc1d514f05440c /Modules/itertoolsmodule.c | |
| parent | 75461e3e2ebefa4a6ef0f191658ce5599e1580a1 (diff) | |
| download | cpython-021dec1c96801401d07c8b84cb51115de641bce9.zip cpython-021dec1c96801401d07c8b84cb51115de641bce9.tar.gz cpython-021dec1c96801401d07c8b84cb51115de641bce9.tar.bz2 | |
detect overflow in combinations (closes #23366)
Diffstat (limited to 'Modules/itertoolsmodule.c')
| -rw-r--r-- | Modules/itertoolsmodule.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c index cd45eb9..4eab79c 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -2093,6 +2093,10 @@ combinations_new(PyTypeObject *type, PyObject *args, PyObject *kwds) goto error; } + if (r > PY_SSIZE_T_MAX/sizeof(Py_ssize_t)) { + PyErr_SetString(PyExc_OverflowError, "r is too big"); + goto error; + } indices = PyMem_Malloc(r * sizeof(Py_ssize_t)); if (indices == NULL) { PyErr_NoMemory(); |