diff options
| author | Ammar Askar <ammar@ammaraskar.com> | 2020-06-10 23:31:22 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2020-06-11 00:31:22 +0100 |
| commit | 3b3b83c965447a8329b34cb4befe6e9908880ee5 (patch) | |
| tree | 612bf0d51451cc7fefd97c5a45549641e93a86ea /Objects/frameobject.c | |
| parent | 1642c0ef750f96664a98cadb09301d492098d2fb (diff) | |
| download | cpython-git-3b3b83c965447a8329b34cb4befe6e9908880ee5.tar.gz | |
Restrict co_code to be under INT_MAX in codeobject (GH-20628)
Diffstat (limited to 'Objects/frameobject.c')
| -rw-r--r-- | Objects/frameobject.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Objects/frameobject.c b/Objects/frameobject.c index 0dad42ee7b..6e1cbcfaf6 100644 --- a/Objects/frameobject.c +++ b/Objects/frameobject.c @@ -397,9 +397,9 @@ frame_setlineno(PyFrameObject *f, PyObject* p_new_lineno, void *Py_UNUSED(ignore return -1; } - int len = Py_SAFE_DOWNCAST( - PyBytes_GET_SIZE(f->f_code->co_code)/sizeof(_Py_CODEUNIT), - Py_ssize_t, int); + /* PyCode_NewWithPosOnlyArgs limits co_code to be under INT_MAX so this + * should never overflow. */ + int len = (int)(PyBytes_GET_SIZE(f->f_code->co_code) / sizeof(_Py_CODEUNIT)); int *lines = marklines(f->f_code, len); if (lines == NULL) { return -1; |