GeezerVison is showing github.com — [3.15] gh-159739: Detect recursive untyped ctypes arguments (GH-160194) by miss-islington · Pull Request #160350 · python/cpython
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miss-islington
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Oct 22, 2026
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edited by bedevere-app
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as_parameter chains were recursion-checked for typed arguments but not for foreign calls without argtypes. A cyclic chain could exhaust the C stack and crash before the function was called. Apply the same recursion guard to untyped conversion. Backport to 3.15 and 3.14.
(cherry picked from commit 3e19e04)
Co-authored-by: Jelle Zijlstra [email protected]
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This was referenced Oct 22, 2026
…160194)
_as_parameter_ chains were recursion-checked for typed arguments but not for foreign calls without argtypes. A cyclic chain could exhaust the C stack and crash before the function was called. Apply the same recursion guard to untyped conversion. Backport to 3.15 and 3.14.
(cherry picked from commit 3e19e04)
Co-authored-by: Jelle Zijlstra <[email protected]>
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