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Created on 2021-09-10 04:23 by chrisb2, last changed 2022-04-11 14:59 by admin. This issue is now closed.
| Messages (2) | |||
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| msg401553 - (view) | Author: Christopher Brichford (chrisb2) | Date: 2021-09-10 04:23 | |
An SSL connection created with loop.create_connection may have data_received called on its protocol after pause_reading has been called on the transport. If an application has a protocol whose data_received method calls pause_reading on the transport then there is a chance that the data_received method will be called again before the application calls resume_reading on the transport. That existing implementation of pause_reading at: https://github.com/python/cpython/blob/62fa613f6a6e872723505ee9d56242c31a654a9d/Lib/asyncio/sslproto.py#L335 calls pause_reading on the underlying socket transport, which is correct. However, there is a loop in the SSLProtocol's data_received method: https://github.com/python/cpython/blob/62fa613f6a6e872723505ee9d56242c31a654a9d/Lib/asyncio/sslproto.py#L335 If the loop referenced above has more than one iteration then there is a chance that the application protocol's data_received method could call pause_reading on the transport. If that happens on any iteration of the loop other than the last iteration, then the SSLProtocol's data_received method will call the application protocol's data_received method when it should not. Stealing uvloop's asyncio ssl implementation would resolve this bug: https://bugs.python.org/issue44011 |
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| msg414106 - (view) | Author: Kumar Aditya (kumaraditya) *  |
Date: 2022-02-26 14:17 | |
Since https://bugs.python.org/issue44011 is fixed, this can be closed now. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:59:49 | admin | set | github: 89322 |
| 2022-02-26 14:47:06 | asvetlov | set | status: open -> closed stage: resolved resolution: fixed versions: + Python 3.11, - Python 3.10 |
| 2022-02-26 14:17:03 | kumaraditya | set | nosy:
+ kumaraditya messages: + msg414106 |
| 2021-09-10 04:23:52 | chrisb2 | create | |