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| author | Benjamin Peterson <benjamin@python.org> | 2015-02-02 02:10:47 (GMT) |
|---|---|---|
| committer | Benjamin Peterson <benjamin@python.org> | 2015-02-02 02:10:47 (GMT) |
| commit | 17845c1786d8659dce42a3b906d0ae31fc1c3dac (patch) | |
| tree | 4c351b2469560d399d4bf525e10a77b9a4b83ce2 /Modules/itertoolsmodule.c | |
| parent | 021dec1c96801401d07c8b84cb51115de641bce9 (diff) | |
| download | cpython-17845c1786d8659dce42a3b906d0ae31fc1c3dac.zip cpython-17845c1786d8659dce42a3b906d0ae31fc1c3dac.tar.gz cpython-17845c1786d8659dce42a3b906d0ae31fc1c3dac.tar.bz2 | |
check for overflow in combinations_with_replacement (closes #23365)
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 4eab79c..47a5e8b 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -2346,6 +2346,10 @@ cwr_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(); |