Serhiy Storchaka added the comment:
Rather rare reference leak is not the worst bug here.
Following example
const char *s = ...;
PyObject *b = PyBytes_New(...);
return PyBuildValue("(Ns)s", b, s, PyBytes_AS_STRING(b));
works if s is correct UTF-8 encoded string. But if it is not correct UTF-8
encoded string, the first "s" is failed and the inner tuple is deallocated
together with the borrowed reference to b. The second "s" then reads freed
memory.
----------
type: resource usage -> crash
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Python tracker <[email protected]>
<http://bugs.python.org/issue26168>
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