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GH-97592: Fix crash in C remove_done_callback due to evil code - #97660
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@xiaxinmeng Feel free to add your review. |
JelleZijlstra
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kumaraditya303
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needs backport to 3.10
CharlieZhao95
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| class evil: | ||
| def __eq__(self, other): | ||
| fut.remove_done_callback(other) | ||
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| fut.remove_done_callback(evil()) |
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Class names should normally use the CapWords convention.
Suggested change
| class evil: | |
| def __eq__(self, other): | |
| fut.remove_done_callback(other) | |
| fut.remove_done_callback(evil()) | |
| class Evil: | |
| def __eq__(self, other): | |
| fut.remove_done_callback(other) | |
| fut.remove_done_callback(Evil()) |
| def __eq__(self, other): | ||
| fut.remove_done_callback(other) | ||
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| fut.remove_done_callback(evil()) |
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All callbacks added by fut.add_done_callback() will be cleared when calling fut.remove_done_callback(Evil()), but the return value will be the number of callbacks added last.
I'm not sure if we need to improve the return value of remove done callback further, the current changes are good enough to fix the crash. :)
Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
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Thanks @gvanrossum for the PR 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11. |
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GH-97692 is a backport of this pull request to the 3.11 branch. |
miss-islington
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…ythonGH-97660) Evil code could cause fut_callbacks to be cleared when PyObject_RichCompareBool is called. (cherry picked from commit 63780f4) Co-authored-by: Guido van Rossum <guido@python.org>
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GH-97693 is a backport of this pull request to the 3.10 branch. |
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…ythonGH-97660) Evil code could cause fut_callbacks to be cleared when PyObject_RichCompareBool is called. (cherry picked from commit 63780f4) Co-authored-by: Guido van Rossum <guido@python.org>
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) Evil code could cause fut_callbacks to be cleared when PyObject_RichCompareBool is called. (cherry picked from commit 63780f4) Co-authored-by: Guido van Rossum <guido@python.org>
miss-islington
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) Evil code could cause fut_callbacks to be cleared when PyObject_RichCompareBool is called. (cherry picked from commit 63780f4) Co-authored-by: Guido van Rossum <guido@python.org>
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…ython#97660) Evil code could cause fut_callbacks to be cleared when PyObject_RichCompareBool is called.
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