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gh-159880: Fix key handle leak in winreg when audit hook fails #159881

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Merged
zooba merged 1 commit into from
Oct 20, 2026
+6 −0
Merged

gh-159880: Fix key handle leak in winreg when audit hook fails #159881

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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Windows/2026-10-20-21-37-34.gh-issue-159880.eKBiLr.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1,3 @@
Fix a key handle leak in :func:`winreg.CreateKey`,
:func:`winreg.CreateKeyEx` and :func:`winreg.OpenKey` when the
``winreg.OpenKey/result`` audit hook fails.
3 changes: 3 additions & 0 deletions PC/winreg.c
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Original file line number Diff line number Diff line change
Expand Up @@ -900,6 +900,7 @@ winreg_CreateKey_impl(PyObject *module, HKEY key, const wchar_t *sub_key)
}
if (PySys_Audit("winreg.OpenKey/result", "n",
(Py_ssize_t)retKey) < 0) {
RegCloseKey(retKey);
return NULL;
}
return retKey;
Expand Down Expand Up @@ -952,6 +953,7 @@ winreg_CreateKeyEx_impl(PyObject *module, HKEY key, const wchar_t *sub_key,
}
if (PySys_Audit("winreg.OpenKey/result", "n",
(Py_ssize_t)retKey) < 0) {
RegCloseKey(retKey);
return NULL;
}
return retKey;
Expand Down Expand Up @@ -1398,6 +1400,7 @@ winreg_OpenKey_impl(PyObject *module, HKEY key, const wchar_t *sub_key,
}
if (PySys_Audit("winreg.OpenKey/result", "n",
(Py_ssize_t)retKey) < 0) {
RegCloseKey(retKey);
return NULL;
}
return retKey;
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