RE: [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue

Subject: RE: [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue
From: maowenan <maowenan@xxxxxxxxxx>
Date: Sat, 31 Aug 2019 11:44:02 +0000
Accept-language: zh-CN, en-US
Cc: "jonathan.lemon@xxxxxxxxx" <jonathan.lemon@xxxxxxxxx>, "stable@xxxxxxxxxxxxxxx" <stable@xxxxxxxxxxxxxxx>, "gregkh@xxxxxxxxxxxxxxxxxxx" <gregkh@xxxxxxxxxxxxxxxxxxx>, "tim.froidcoeur@xxxxxxxxxxxx" <tim.froidcoeur@xxxxxxxxxxxx>, "matthieu.baerts@xxxxxxxxxxxx" <matthieu.baerts@xxxxxxxxxxxx>, "aprout@xxxxxxxxxx" <aprout@xxxxxxxxxx>, "edumazet@xxxxxxxxxx" <edumazet@xxxxxxxxxx>, "jtl@xxxxxxxxxxx" <jtl@xxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "mkubecek@xxxxxxx" <mkubecek@xxxxxxx>, "ncardwell@xxxxxxxxxx" <ncardwell@xxxxxxxxxx>, "sashal@xxxxxxxxxx" <sashal@xxxxxxxxxx>, "ycheng@xxxxxxxxxx" <ycheng@xxxxxxxxxx>, "netdev@xxxxxxxxxxxxxxx" <netdev@xxxxxxxxxxxxxxx>
In-reply-to: <20190830.192049.1447010488040109227.davem@davemloft.net>
Thread-index: AQHVX55YYqkinwCtOUunKpnrH9Dyz6cUAA+AgAEi0HA=
Thread-topic: [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue

Tim 

 Can you share the reproduce steps for this issue? C or syzkaller is ok.
 Thanks a lot.

References:
- [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue
  - From: Tim Froidcoeur
- Re: [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue
  - From: Jonathan Lemon
- Re: [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue
  - From: Christoph Paasch
- Re: [PATCH 4.14] tcp: fix tcp_rtx_queue_tail in case of empty retransmit queue
  - From: David Miller