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| author | Bill Fisher <william.w.fisher@gmail.com> | 2022-12-23 07:45:53 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-12-23 20:15:53 +0530 |
| commit | 88d565f32a709140664444c6dea20ecd35a10e94 (patch) | |
| tree | bd185455ee0b70ed60f6ca29479f2fb918999599 /Objects/frameobject.c | |
| parent | 2659036c757a11235c4abd21f02c3a548a344fe7 (diff) | |
| download | cpython-git-88d565f32a709140664444c6dea20ecd35a10e94.tar.gz | |
gh-99110: Initialize `frame->previous` in init_frame to fix segmentation fault when accessing `frame.f_back` (#100182)
Diffstat (limited to 'Objects/frameobject.c')
| -rw-r--r-- | Objects/frameobject.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Objects/frameobject.c b/Objects/frameobject.c index 74c26d8d4d..eab85c08fc 100644 --- a/Objects/frameobject.c +++ b/Objects/frameobject.c @@ -1013,6 +1013,7 @@ init_frame(_PyInterpreterFrame *frame, PyFunctionObject *func, PyObject *locals) PyCodeObject *code = (PyCodeObject *)func->func_code; _PyFrame_InitializeSpecials(frame, (PyFunctionObject*)Py_NewRef(func), Py_XNewRef(locals), code); + frame->previous = NULL; for (Py_ssize_t i = 0; i < code->co_nlocalsplus; i++) { frame->localsplus[i] = NULL; } |