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| author | Michael Curran <mick@nvaccess.org> | 2022-09-26 16:27:44 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-09-26 16:27:44 (GMT) |
| commit | d79dd929accac13832bc13ed12be34466584ca81 (patch) | |
| tree | 86094a2086448dd1fc5440c6be39405cff5d68eb /Lib/test | |
| parent | 85752decbfd733284ffdb8ae9c93b927765236c7 (diff) | |
| download | cpython-d79dd929accac13832bc13ed12be34466584ca81.zip cpython-d79dd929accac13832bc13ed12be34466584ca81.tar.gz cpython-d79dd929accac13832bc13ed12be34466584ca81.tar.bz2 | |
bpo-38748: Add ctypes test for stack corruption due to misaligned arguments (GH-26204)
Diffstat (limited to 'Lib/test')
| -rw-r--r-- | Lib/test/test_ctypes/test_callbacks.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Lib/test/test_ctypes/test_callbacks.py b/Lib/test/test_ctypes/test_callbacks.py index b5bef04..e8fa3e6 100644 --- a/Lib/test/test_ctypes/test_callbacks.py +++ b/Lib/test/test_ctypes/test_callbacks.py @@ -1,3 +1,4 @@ +import sys import functools import unittest from test import support @@ -150,6 +151,18 @@ class Callbacks(unittest.TestCase): gc.collect() CFUNCTYPE(None)(lambda x=Nasty(): None) + @need_symbol('WINFUNCTYPE') + def test_i38748_stackCorruption(self): + callback_funcType = WINFUNCTYPE(c_long, c_long, c_longlong) + @callback_funcType + def callback(a, b): + c = a + b + print(f"a={a}, b={b}, c={c}") + return c + dll = cdll[_ctypes_test.__file__] + # With no fix for i38748, the next line will raise OSError and cause the test to fail. + self.assertEqual(dll._test_i38748_runCallback(callback, 5, 10), 15) + @need_symbol('WINFUNCTYPE') class StdcallCallbacks(Callbacks): |