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| author | denballakh <47365157+denballakh@users.noreply.github.com> | 2023-10-08 00:04:51 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-10-08 00:04:51 (GMT) |
| commit | dd9d781da30aa3740e54c063a40413c542d78c25 (patch) | |
| tree | 68d6b82652c7b224897411f3c70be6beeb910cd2 /Python/ceval.c | |
| parent | de2a4036cbfd5e41a5bdd2b81122b7765729af83 (diff) | |
| download | cpython-dd9d781da30aa3740e54c063a40413c542d78c25.zip cpython-dd9d781da30aa3740e54c063a40413c542d78c25.tar.gz cpython-dd9d781da30aa3740e54c063a40413c542d78c25.tar.bz2 | |
gh-110237: Check `PyList_Append` for errors in `_PyEval_MatchClass` (#110238)
Diffstat (limited to 'Python/ceval.c')
| -rw-r--r-- | Python/ceval.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/Python/ceval.c b/Python/ceval.c index cae29e0..ac40425 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -506,7 +506,9 @@ _PyEval_MatchClass(PyThreadState *tstate, PyObject *subject, PyObject *type, } if (match_self) { // Easy. Copy the subject itself, and move on to kwargs. - PyList_Append(attrs, subject); + if (PyList_Append(attrs, subject) < 0) { + goto fail; + } } else { for (Py_ssize_t i = 0; i < nargs; i++) { @@ -522,7 +524,10 @@ _PyEval_MatchClass(PyThreadState *tstate, PyObject *subject, PyObject *type, if (attr == NULL) { goto fail; } - PyList_Append(attrs, attr); + if (PyList_Append(attrs, attr) < 0) { + Py_DECREF(attr); + goto fail; + } Py_DECREF(attr); } } @@ -535,7 +540,10 @@ _PyEval_MatchClass(PyThreadState *tstate, PyObject *subject, PyObject *type, if (attr == NULL) { goto fail; } - PyList_Append(attrs, attr); + if (PyList_Append(attrs, attr) < 0) { + Py_DECREF(attr); + goto fail; + } Py_DECREF(attr); } Py_SETREF(attrs, PyList_AsTuple(attrs)); |