diff options
| -rw-r--r-- | Misc/NEWS.d/next/Core and Builtins/2022-09-05-15-07-25.gh-issue-96582.HEsL5s.rst | 1 | ||||
| -rw-r--r-- | Python/pystate.c | 7 |
2 files changed, 7 insertions, 1 deletions
diff --git a/Misc/NEWS.d/next/Core and Builtins/2022-09-05-15-07-25.gh-issue-96582.HEsL5s.rst b/Misc/NEWS.d/next/Core and Builtins/2022-09-05-15-07-25.gh-issue-96582.HEsL5s.rst new file mode 100644 index 0000000..162f7ba --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2022-09-05-15-07-25.gh-issue-96582.HEsL5s.rst @@ -0,0 +1 @@ +Fix possible ``NULL`` pointer dereference in ``_PyThread_CurrentFrames``. Patch by Kumar Aditya. diff --git a/Python/pystate.c b/Python/pystate.c index 1c96f4f..a0d61d7 100644 --- a/Python/pystate.c +++ b/Python/pystate.c @@ -1413,7 +1413,12 @@ _PyThread_CurrentFrames(void) if (id == NULL) { goto fail; } - int stat = PyDict_SetItem(result, id, (PyObject *)_PyFrame_GetFrameObject(frame)); + PyObject *frameobj = (PyObject *)_PyFrame_GetFrameObject(frame); + if (frameobj == NULL) { + Py_DECREF(id); + goto fail; + } + int stat = PyDict_SetItem(result, id, frameobj); Py_DECREF(id); if (stat < 0) { goto fail; |