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[3.15] gh-159811: Raise OpenSSL errors in _hashlib.HASH after re-attaching the thread state (GH-159817) - #159927
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…aching the thread state (pythonGH-159817) When `EVP_DigestUpdate()` failed, `_hashlib_HASH_hash()` raised a Python exception, however, `_hashlib.HASH.update()` and the `_hashlib.HASH` constructor release the GIL before calling it when the data is larger than `HASHLIB_GIL_MINSIZE` bytes. `_hashlib_HASH_hash()` now only returns an error status and its callers raise the exception once they have re-attached the thread state. (cherry picked from commit 6fa2d64) Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
picnixz
approved these changes
Oct 20, 2026
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When
EVP_DigestUpdate()failed,_hashlib_HASH_hash()raised a Pythonexception, however,
_hashlib.HASH.update()and the_hashlib.HASHconstructor release the GIL before calling it when the data is larger
than
HASHLIB_GIL_MINSIZEbytes._hashlib_HASH_hash()now only returns an error status and its callersraise the exception once they have re-attached the thread state.
(cherry picked from commit 6fa2d64)
Co-authored-by: Bénédikt Tran 10796600+picnixz@users.noreply.github.com
_hashlib: GIL may be released while attempting to set an exception #159811