Joseph Sutton 0e3ac110df CVE-2021-20251 tests/krb5: Convert password lockout tests to use os.fork() and os.pipe() ... Running the password lockout tests on Fedora 35 occasionally results in errors similar to the following: [1(0)/1 at 0s] samba.tests.krb5.lockout_tests(ad_dc:local) EPOLL_CTL_DEL EBADF for fde[0x5569dc76c670] mpx_fde[(nil)] fd[14] - disabling EPOLL_CTL_DEL EBADF for fde[0x5569dc6089c0] mpx_fde[(nil)] fd[14] - disabling EPOLL_CTL_DEL EBADF for fde[0x5569dbbe58e0] mpx_fde[(nil)] fd[14] - disabling UNEXPECTED(error): samba.tests.krb5.lockout_tests.samba.tests.krb5.lockout_tests.LockoutTests.test_lockout_race_kdc(ad_dc:local) REASON: Exception: Exception: concurrent.futures.process._RemoteTraceback: """ Traceback (most recent call last): File "/usr/lib64/python3.10/concurrent/futures/process.py", line 243, in _process_worker r = call_item.fn(*call_item.args, **call_item.kwargs) File "/home/samba/src/bin/python/samba/tests/krb5/lockout_tests.py", line 141, in connect_kdc pipe.send_bytes(b'0') File "/usr/lib64/python3.10/multiprocessing/connection.py", line 205, in send_bytes self._send_bytes(m[offset:offset + size]) File "/usr/lib64/python3.10/multiprocessing/connection.py", line 416, in _send_bytes self._send(header + buf) File "/usr/lib64/python3.10/multiprocessing/connection.py", line 373, in _send n = write(self._handle, buf) OSError: [Errno 9] Bad file descriptor """ The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/home/samba/src/bin/python/samba/tests/krb5/lockout_tests.py", line 537, in test_lockout_race_kdc self.do_lockout_race(connect_kdc) File "/home/samba/src/bin/python/samba/tests/krb5/lockout_tests.py", line 863, in do_lockout_race self.wait_for_ready(our_pipe, connect_future) File "/home/samba/src/bin/python/samba/tests/krb5/lockout_tests.py", line 471, in wait_for_ready raise exception OSError: [Errno 9] Bad file descriptor Such messages can be seen to come from epoll_del_event(). By resorting to lower-level facilites such as fork() and OS pipes, we lose helpful features such as timeouts and propagation of exceptions from child processes, but we may avoid interactions with the event system that lead to failures. BUG: https://bugzilla.samba.org/show_bug.cgi?id=14611 Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>		2022-09-18 16:46:09 +00:00
..
examples	examples: Make winreg.py sample work with python3 in current master	2021-07-19 17:44:08 +00:00
samba	CVE-2021-20251 tests/krb5: Convert password lockout tests to use os.fork() and os.pipe()	2022-09-18 16:46:09 +00:00
modules.c	py3: Remove PyStr_FromString() compatability macro	2019-06-24 17:24:27 +00:00
modules.h	python: Create macro to hide ugly function signature cast	2019-05-16 17:55:16 +00:00
py3compat.h	py3compat: remove obsolete comments	2021-03-17 17:10:32 +00:00
pyglue.c	selftest: Add test of NDR marshalling from python, starting with wbint	2021-06-02 03:56:36 +00:00
wscript	python:waf: Correctly check for python-dateutil	2021-07-21 11:27:36 +00:00