https://github.com/python/cpython/commit/2b1b68939b15b913080a3403e3ba18e2a1f520ef commit: 2b1b68939b15b913080a3403e3ba18e2a1f520ef branch: main author: Tian Gao <[email protected]> committer: gaogaotiantian <[email protected]> date: 2024-07-15T16:11:02-07:00 summary:
gh-121814: Only check f_trace_opcodes if Python frame exists (#121818) Co-authored-by: Matt Wozniski <[email protected]> files: A Misc/NEWS.d/next/Core and Builtins/2024-07-15-20-41-06.gh-issue-121814.oR2ixR.rst M Python/legacy_tracing.c diff --git a/Misc/NEWS.d/next/Core and Builtins/2024-07-15-20-41-06.gh-issue-121814.oR2ixR.rst b/Misc/NEWS.d/next/Core and Builtins/2024-07-15-20-41-06.gh-issue-121814.oR2ixR.rst new file mode 100644 index 00000000000000..14666de45f32e3 --- /dev/null +++ b/Misc/NEWS.d/next/Core and Builtins/2024-07-15-20-41-06.gh-issue-121814.oR2ixR.rst @@ -0,0 +1 @@ +Fixed the SegFault when :c:func:`PyEval_SetTrace` is used with no Python frame on stack. diff --git a/Python/legacy_tracing.c b/Python/legacy_tracing.c index 74118030925e3e..1103d999dfaea5 100644 --- a/Python/legacy_tracing.c +++ b/Python/legacy_tracing.c @@ -605,7 +605,7 @@ _PyEval_SetTrace(PyThreadState *tstate, Py_tracefunc func, PyObject *arg) (1 << PY_MONITORING_EVENT_STOP_ITERATION); PyFrameObject* frame = PyEval_GetFrame(); - if (frame->f_trace_opcodes) { + if (frame && frame->f_trace_opcodes) { int ret = _PyEval_SetOpcodeTrace(frame, true); if (ret != 0) { return ret; _______________________________________________ Python-checkins mailing list -- [email protected] To unsubscribe send an email to [email protected] https://mail.python.org/mailman3/lists/python-checkins.python.org/ Member address: [email protected]
