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Fix possible NULL pointer dereference in _PyThread_CurrentFrames (GH-96584)

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Kumar Aditya 2022-09-09 17:03:40 +05:30 • committed by GitHub
parent 30cc1901ef
commit 88a7f661ca
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2 changed files with 7 additions and 1 deletions
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Misc/NEWS.d/next/Core and Builtins/2022-09-05-15-07-25.gh-issue-96582.HEsL5s.rst Normal file
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@ -0,0 +1 @@
Fix possible ``NULL`` pointer dereference in ``_PyThread_CurrentFrames``. Patch by Kumar Aditya.

7
Python/pystate.c
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@ -1413,7 +1413,12 @@ _PyThread_CurrentFrames(void)
if (id == NULL) { if (id == NULL) {
goto fail; 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); Py_DECREF(id);
if (stat < 0) { if (stat < 0) {
goto fail; goto fail;