8000 gh-94510: Raise on re-entrant calls to sys.setprofile and sys.settrace by pablogsal · Pull Request #94511 · python/cpython · GitHub
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gh-94510: Raise on re-entrant calls to sys.setprofile and sys.settrace #94511

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Merged
merged 3 commits into from
Jul 5, 2022
Merged

gh-94510: Raise on re-entrant calls to sys.setprofile and sys.settrace #94511

merged 3 commits into from
Jul 5, 2022

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pablogsal
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@pablogsal pablogsal commented Jul 2, 2022 •
edited by bedevere-bot
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@pablogsal pablogsal requested a review from markshannon as a code owner July 2, 2022 18:49
@pablogsal pablogsal added needs backport to 3.10 only security fixes needs backport to 3.11 only security fixes labels Jul 2, 2022
pablogsal
pablogsal commented Jul 2, 2022
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Python/ceval.c
Py_XINCREF(arg);
Py_XDECREF(traceobj);
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@pablogsal pablogsal Jul 2, 2022 •
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I reversed this order to avoid dec-refing too much traceobj if traceobj and arg are the same objects and we held the last ref.

@pablogsal pablogsal marked this pull request as draft July 2, 2022 20:48
@pablogsal pablogsal marked this pull request as ready for review July 3, 2022 00:15
pablogsal
pablogsal commented Jul 3, 2022
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Modules/_lsprof.c
@@ -750,7 +750,7 @@ profiler_dealloc(ProfilerObject *op)
if (op->flags & POF_ENABLED) {
PyThreadState *tstate = _PyThreadState_GET();
if (_PyEval_SetProfile(tstate, NULL, NULL) < 0) {
PyErr_WriteUnraisable((PyObject *)op);
_PyErr_WriteUnraisableMsg("When destroying _lsprof profiler", NULL);
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Interestigly, I catched this bug with the change: the object here is dead so is not correct to pass it to the unraisable hook.

ambv
ambv reviewed Jul 5, 2022
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@ambv ambv merged commit 40d81fd into python:main Jul 5, 2022
@miss-islington
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Thanks @pablogsal for the PR, and @ambv for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11.
🐍🍒⛏🤖

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Sorry @pablogsal and @ambv, I had trouble checking out the 3.11 backport branch.
Please backport using cherry_picker on command line.
cherry_picker 40d81fd63b46cf998880ce3bf3e5cb42bc3199c1 3.11

@miss-islington
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Sorry, @pablogsal and @ambv, I could not cleanly backport this to 3.10 due to a conflict.
Please backport using cherry_picker on command line.
cherry_picker 40d81fd63b46cf998880ce3bf3e5cb42bc3199c1 3.10

ambv pushed a commit to ambv/cpython that referenced this pull request Jul 5, 2022
@pablogsal @ambv
[3.11] pythongh-94510: Raise on re-entrant calls to sys.setprofile an…
812aa84 
…d sys.settrace (pythonGH-94511)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit 40d81fd)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
@bedevere-bot bedevere-bot removed the needs backport to 3.11 only security fixes label Jul 5, 2022
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GH-94578 is a backport of this pull request to the 3.11 branch.

@bedevere-bot bedevere-bot removed the needs backport to 3.10 only security fixes label Jul 5, 2022
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GH-94579 is a backport of this pull request to the 3.10 branch.

ambv pushed a commit to ambv/cpython that referenced this pull request Jul 5, 2022
@pablogsal @ambv
[3.10] pythongh-94510: Raise on re-entrant calls to sys.setprofile an…
0e396d4 
…d sys.settrace (pythonGH-94511)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit 40d81fd)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
pablogsal added a commit to pablogsal/cpython that referenced this pull request Jul 5, 2022
@pablogsal
[3.10] pythongh-94510: Raise on re-entrant calls to sys.setprofile an…
2f6428c 
…d sys.settrace (pythonGH-94511)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>.
(cherry picked from commit 40d81fd)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
pablogsal added a commit that referenced this pull request Jul 5, 2022
@pablogsal
[3.10] gh-94510: Raise on re-entrant calls to sys.setprofile and syss…
5e24c80 
…ettrace (GH-94511) (#94579)

Co-authored-by: Łukasz Langa <lukasz@langa.pl>.
Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
ambv added a commit that referenced this pull request Jul 5, 2022
@ambv @pablogsal
[3.11] gh-94510: Raise on re-entrant calls to sys.setprofile and sys.…
5f4a16b 
…settrace (GH-94511) (GH-94578)

Co-authored-by: Pablo Galindo Salgado <Pablogsal@gmail.com>
Co-authored-by: Łukasz Langa <lukasz@langa.pl>
(cherry picked from commit 40d81fd)
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