8000 gh-111178: fix UBSan failures in `Python/context.c` by picnixz · Pull Request #128242 · python/cpython · GitHub
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gh-111178: fix UBSan failures in Python/context.c #128242

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Merged
merged 4 commits into from
Jan 8, 2025
Merged

gh-111178: fix UBSan failures in Python/context.c #128242

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d9b1042
fix UBSan failures for `PyContext`
picnixz Dec 23, 2024
c9f8a06
fix UBSan failures for `PyContextVar`
picnixz Dec 23, 2024
e63ca99
fix UBSan failures for `PyContextToken`
picnixz Dec 23, 2024
637335d
fix UBSan failures for `_PyContextTokenMissing`
picnixz Dec 23, 2024
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fix UBSan failures for _PyContextTokenMissing
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@picnixz
picnixz committed Dec 23, 2024
commit 637335d9061d237e2a59e7090daa2ee145bc9d21
11 changes: 3 additions & 8 deletions Python/context.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1136,12 +1136,7 @@ class _contextvars.Token "PyContextToken *" "&PyContextToken_Type"
/*[clinic end generated code: output=da39a3ee5e6b4b0d input=338a5e2db13d3f5b]*/


static inline PyContextToken *
_PyContextToken_CAST(PyObject *op)
{
assert(PyObject_TypeCheck(op, &PyContextToken_Type));
return (PyContextToken *)op;
}
#define _PyContextToken_CAST(op) ((PyContextToken *)(op))


static PyObject *
Expand Down Expand Up @@ -1290,7 +1285,7 @@ context_token_missing_tp_repr(PyObject *self)
}

static void
context_token_missing_tp_dealloc(_PyContextTokenMissing *Py_UNUSED(self))
context_token_missing_tp_dealloc(PyObject *Py_UNUSED(self))
{
#ifdef Py_DEBUG
/* The singleton is statically allocated. */
Expand All @@ -1305,7 +1300,7 @@ PyTypeObject _PyContextTokenMissing_Type = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
"Token.MISSING",
sizeof(_PyContextTokenMissing),
.tp_dealloc = (destructor)context_token_missing_tp_dealloc,
.tp_dealloc = context_token_missing_tp_dealloc,
.tp_getattro = PyObject_GenericGetAttr,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_repr = context_token_missing_tp_repr,
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