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gh-134411: assert PyLong_FromLong(x) != NULL when x is known to be small #134415

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Merged
merged 7 commits into from
Jul 21, 2025
Merged

gh-134411: assert PyLong_FromLong(x) != NULL when x is known to be small #134415

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ae18ce8
Fix dangerous reference count decrement
smurav May 21, 2025
4429178
Since PyLong_From Long(PY_MONITORING_DEBUGGER_ID) falls to small_int …
smurav May 21, 2025
bea99f9
Fix description added.
smurav May 22, 2025
71ab99d
Merge branch 'main' into fix-gh-134411
smurav May 22, 2025
591c6e4
Fix error from lint
smurav May 22, 2025
cd6827b
Merge branch 'fix-gh-134411' of github.com:smurav/cpython into fix-gh…
smurav May 22, 2025
f449cbd
Comment сorrection
smurav May 26, 2025
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6 changes: 6 additions & 0 deletions Python/instrumentation.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2558,18 +2558,24 @@ PyObject *_Py_CreateMonitoringObject(void)
err = PyObject_SetAttrString(events, "NO_EVENTS", _PyLong_GetZero());
if (err) goto error;
PyObject *val = PyLong_FromLong(PY_MONITORING_DEBUGGER_ID);
assert(val != NULL); /* Regression test for PyLong_FromLong which can return
NULL in the general case. But now it can't return
NULL for arguments of small int type. */
err = PyObject_SetAttrString(mod, "DEBUGGER_ID", val);
Py_DECREF(val);
if (err) goto error;
val = PyLong_FromLong(PY_MONITORING_COVERAGE_ID);
assert(val != NULL);
err = PyObject_SetAttrString(mod, "COVERAGE_ID", val);
Py_DECREF(val);
if (err) goto error;
val = PyLong_FromLong(PY_MONITORING_PROFILER_ID);
assert(val != NULL);
err = PyObject_SetAttrString(mod, "PROFILER_ID", val);
Py_DECREF(val);
if (err) goto error;
val = PyLong_FromLong(PY_MONITORING_OPTIMIZER_ID);
assert(val != NULL);
err = PyObject_SetAttrString(mod, "OPTIMIZER_ID", val);
Py_DECREF(val);
if (err) goto error;
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