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python: Avoid leaking py_array and py_args in event callbacks

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See also:

https://listman.redhat.com/archives/libguestfs/2023-February/030730.html
https://listman.redhat.com/archives/libguestfs/2023-February/030745.html
https://listman.redhat.com/archives/libguestfs/2023-February/030746.html

Fixes: commit 6ef5837e2d
Thanks: Laszlo Ersek, Eric Blake
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Richard W.M. Jones
2023-02-16 15:11:02 +00:00
parent e07304de86
commit afa4d64fca
1 changed files with 1 additions and 0 deletions
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python/handle.c
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@@ -134,6 +134,7 @@ guestfs_int_py_event_callback_wrapper (guestfs_h *g,
args = Py_BuildValue ("(Kiy#O)",
(unsigned PY_LONG_LONG) event, event_handle,
buf, buf_len, py_array);
Py_DECREF (py_array);
if (args == NULL) {
PyErr_PrintEx (0);
goto out;