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gh-155835: fix `digest_size` data race on BLAKE-2 objects by picnixz · Pull Request #155839 · python/cpython · GitHub

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gh-155835: fix digest_size data race on BLAKE-2 objects #155839

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Merged
picnixz merged 5 commits into from
Sep 6, 2026
Conversation 6 Commits 5 Checks 52 Files changed
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gh-155835: fix digest_size data race on BLAKE-2 objects #155839

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194cdab
gh-155835: fix `digest_size` data race on BLAKE-2 objects
picnixz Aug 15, 2026
374bfef
Update blake2module.c
picnixz Aug 15, 2026
0565277
add TSAN tests for BLAKE2
picnixz Aug 16, 2026
2693e04
Update Lib/test/test_hashlib.py
picnixz Aug 16, 2026
e6afd4a
Merge branch 'main' into meta/crypto/c/36/blake2-hash-critical-sectio…
picnixz Sep 6, 2026
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Update blake2module.c
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picnixz authored Aug 15, 2026
commit 374bfeffcff7b5cb452907c4fb9aec6482fc7b31
3 changes: 1 addition & 2 deletions Modules/blake2module.c
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Original file line number Diff line number Diff line change
Expand Up @@ -950,9 +950,8 @@ static PyObject *
py_blake2b_get_digest_size(PyObject *op, void *Py_UNUSED(closure))
{
Blake2Object *self = _Blake2Object_CAST(op);
Hacl_Hash_Blake2b_index info;
HASHLIB_ACQUIRE_LOCK(self);
info = hacl_get_blake2_info(self);
Hacl_Hash_Blake2b_index info = hacl_get_blake2_info(self);
HASHLIB_RELEASE_LOCK(self);
return PyLong_FromLong(info.digest_length);
}
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