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GH-128563: Don't leave frame->lltrace uninitialized (GH-129417)

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Brandt Bucher 2025-01-28 16:26:46 -08:00 • committed by GitHub
parent 828b27680f
commit 41ad2bb248
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2 changed files with 8 additions and 0 deletions
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6
Include/internal/pycore_frame.h
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@ -215,6 +215,9 @@ _PyFrame_Initialize(
frame->return_offset = 0; frame->return_offset = 0;
frame->owner = FRAME_OWNED_BY_THREAD; frame->owner = FRAME_OWNED_BY_THREAD;
frame->visited = 0; frame->visited = 0;
#ifdef Py_DEBUG
frame->lltrace = 0;
#endif
for (int i = null_locals_from; i < code->co_nlocalsplus; i++) { for (int i = null_locals_from; i < code->co_nlocalsplus; i++) {
frame->localsplus[i] = PyStackRef_NULL; frame->localsplus[i] = PyStackRef_NULL;
@ -398,6 +401,9 @@ _PyFrame_PushTrampolineUnchecked(PyThreadState *tstate, PyCodeObject *code, int
#endif #endif
frame->owner = FRAME_OWNED_BY_THREAD; frame->owner = FRAME_OWNED_BY_THREAD;
frame->visited = 0; frame->visited = 0;
#ifdef Py_DEBUG
frame->lltrace = 0;
#endif
frame->return_offset = 0; frame->return_offset = 0;
#ifdef Py_GIL_DISABLED #ifdef Py_GIL_DISABLED

2
Misc/NEWS.d/next/Core_and_Builtins/2025-01-28-11-13-41.gh-issue-128563.xElppE.rst Normal file
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@ -0,0 +1,2 @@
Fix an issue where the "lltrace" debug feature could have been incorrectly
enabled for some frames.