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UAF on fut->fut_callback0 with evil __eq__ in _asynciomodule.c #125966
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Bug description:
This is an issue just to track the progress of fixing the UAF on fut->fut_callback0 (see #125833 (comment)).
The UAF that could be exploited by clearing fut._callbacks won't be triggered anymore since after #125922, we will not mutate the internal list itself anymore but it is still be possilbe to mutate fut->fut_callback0 directly: #125833 (comment).
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response
Linked PRs
- gh-125966: fix UAF on
fut->fut_callback0due to an evil callback's__eq__#125967 - [3.13] gh-125966: fix use-after-free on
fut->fut_callback0due to an evil callback's__eq__in asyncio (GH-125967) #126047 - [3.12] gh-125966: fix use-after-free on
fut->fut_callback0due to an evil callback's__eq__in asyncio (GH-125967) #126048
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[-]UAF on `fut->fut_callback0` in `_asynciomodule.c`[/-][+]UAF on `fut->fut_callback0` and evil `__eq__` in `_asynciomodule.c`[/+][-]UAF on `fut->fut_callback0` and evil `__eq__` in `_asynciomodule.c`[/-][+]UAF on `fut->fut_callback0` with evil `__eq__` in `_asynciomodule.c`[/+]gh-125966: fix use-after-free on `fut->fut_callback0` due to an evil …
pythongh-125966: fix use-after-free on `fut->fut_callback0` due to an…
pythongh-125966: fix use-after-free on `fut->fut_callback0` due to an…
[3.12] gh-125966: fix use-after-free on `fut->fut_callback0` due to a…
[3.13] gh-125966: fix use-after-free on `fut->fut_callback0` due to a…
pythongh-125966: fix use-after-free on `fut->fut_callback0` due to an…
pythongh-125966: fix use-after-free on `fut->fut_callback0` due to an…