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[3.7] bpo-38823: Fix refleaks in faulthandler init error path on Windows (GH-17250) #17264

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merged 1 commit into from
Nov 19, 2019
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[3.7] bpo-38823: Fix refleaks in faulthandler init error path on Windows (GH-17250) #17264

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31 changes: 21 additions & 10 deletions Modules/faulthandler.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1273,25 +1273,36 @@ PyInit_faulthandler(void)
#ifdef MS_WINDOWS
/* RaiseException() codes (prefixed by an underscore) */
if (PyModule_AddIntConstant(m, "_EXCEPTION_ACCESS_VIOLATION",
EXCEPTION_ACCESS_VIOLATION))
return NULL;
EXCEPTION_ACCESS_VIOLATION)) {
goto error;
}
if (PyModule_AddIntConstant(m, "_EXCEPTION_INT_DIVIDE_BY_ZERO",
EXCEPTION_INT_DIVIDE_BY_ZERO))
return NULL;
EXCEPTION_INT_DIVIDE_BY_ZERO)) {
goto error;
}
if (PyModule_AddIntConstant(m, "_EXCEPTION_STACK_OVERFLOW",
EXCEPTION_STACK_OVERFLOW))
return NULL;
EXCEPTION_STACK_OVERFLOW)) {
goto error;
}

/* RaiseException() flags (prefixed by an underscore) */
if (PyModule_AddIntConstant(m, "_EXCEPTION_NONCONTINUABLE",
EXCEPTION_NONCONTINUABLE))
return NULL;
EXCEPTION_NONCONTINUABLE)) {
goto error;
}
if (PyModule_AddIntConstant(m, "_EXCEPTION_NONCONTINUABLE_EXCEPTION",
EXCEPTION_NONCONTINUABLE_EXCEPTION))
return NULL;
EXCEPTION_NONCONTINUABLE_EXCEPTION)) {
goto error;
}
#endif

return m;

#ifdef MS_WINDOWS
error:
Py_DECREF(m);
return NULL;
#endif
}

static int
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