diff options
| author | Guido van Rossum <guido@python.org> | 2001-12-04 16:36:39 (GMT) |
|---|---|---|
| committer | Guido van Rossum <guido@python.org> | 2001-12-04 16:36:39 (GMT) |
| commit | 03b3f045425f201001deb0fc632a7d15f9c18cca (patch) | |
| tree | b8bbde23f9bede61a9925cde7e9083425a87287e | |
| parent | b48b6d073794481765159af6e2f4ebce84a42265 (diff) | |
| download | cpython-03b3f045425f201001deb0fc632a7d15f9c18cca.zip cpython-03b3f045425f201001deb0fc632a7d15f9c18cca.tar.gz cpython-03b3f045425f201001deb0fc632a7d15f9c18cca.tar.bz2 | |
long_mul(): The PyNumber_Multiply() call can return a long if the
result would overflow an int. Check for this. (SF bug #488482, Armin
Rigo.)
| -rw-r--r-- | Objects/rangeobject.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Objects/rangeobject.c b/Objects/rangeobject.c index 24765f4..5095e52 100644 --- a/Objects/rangeobject.c +++ b/Objects/rangeobject.c @@ -38,10 +38,16 @@ long_mul(long i, long j, long *kk) if (c == NULL) return 0; + if (!PyInt_Check(c)) { + Py_DECREF(c); + goto overflow; + } + *kk = PyInt_AS_LONG(c); Py_DECREF(c); if (*kk > INT_MAX) { + overflow: PyErr_SetString(PyExc_OverflowError, "integer multiplication"); return 0; |