8000 gh-99110: Initialize frame->previous in init_frame to fix segmentation fault by byllyfish · Pull Request #100182 · python/cpython · GitHub
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gh-99110: Initialize frame->previous in init_frame to fix segmentation fault #100182

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Merged
merged 10 commits into from
Dec 23, 2022
Merged

gh-99110: Initialize frame->previous in init_frame to fix segmentation fault #100182

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b2e7256
Initialize frame->previous in _PyFrame_InitializeSpecials.
byllyfish Dec 12, 2022
b6e290d
📜🤖 Added by blurb_it.
blurb-it[bot] Dec 12, 2022
f667d8f
Fixing Python file whitespace. (patchcheck)
byllyfish Dec 12, 2022
d679783
Move initialization of frame->previous to init_frame.
byllyfish Dec 13, 2022
230b80e
Move comment above function.
byllyfish Dec 18, 2022
4e70dc5
Add frame_new function to _testcapimodule.c.
byllyfish Dec 18, 2022
627e8d5
Remove blank line.
byllyfish Dec 18, 2022
35a4c58
Use assertIsNone
kumaraditya303 Dec 23, 2022
34bee72
Merge branch 'main' into fix-issue-99110
kumaraditya303 Dec 23, 2022
2c1db99
Update Misc/NEWS.d/next/Core and Builtins/2022-12-12-01-05-16.gh-issu…
kumaraditya303 Dec 23, 2022
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Move comment above function.
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@byllyfish
byllyfish committed Dec 18, 2022
commit 230b80e2c5a7da57283f219f94a879602edf29ed
6 changes: 4 additions & 2 deletions Include/internal/pycore_frame.h
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Expand Up @@ -96,7 +96,10 @@ static inline void _PyFrame_StackPush(_PyInterpreterFrame *f, PyObject *value) {

void _PyFrame_Copy(_PyInterpreterFrame *src, _PyInterpreterFrame *dest);

/* Consumes reference to func and locals */
/* Consumes reference to func and locals.
Does not initialize frame->previous, which happens
when frame is linked into the frame stack.
*/
static inline void
_PyFrame_InitializeSpecials(
_PyInterpreterFrame *frame, PyFunctionObject *func,
Expand All @@ -112,7 +115,6 @@ _PyFrame_InitializeSpecials(
frame->prev_instr = _PyCode_CODE(code) - 1;
frame->yield_offset = 0;
frame->owner = FRAME_OWNED_BY_THREAD;
// frame->previous: initialized when frame is linked into the frame stack
}

/* Gets the pointer to the locals array
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