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Message-Id: 
 <171452942984.31721.7901556762643554206.git-patchwork-notify@kernel.org>
Date: Wed, 01 May 2024 02:10:29 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Matthieu Baerts <matttbe@...nel.org>
Cc: mptcp@...ts.linux.dev, martineau@...nel.org, geliang@...nel.org,
 davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
 dcaratti@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 stable@...r.kernel.org, cpaasch@...le.com
Subject: Re: [PATCH net] mptcp: ensure snd_nxt is properly initialized on
 connect

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Mon, 29 Apr 2024 20:00:31 +0200 you wrote:
> From: Paolo Abeni <pabeni@...hat.com>
> 
> Christoph reported a splat hinting at a corrupted snd_una:
> 
>   WARNING: CPU: 1 PID: 38 at net/mptcp/protocol.c:1005 __mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005
>   Modules linked in:
>   CPU: 1 PID: 38 Comm: kworker/1:1 Not tainted 6.9.0-rc1-gbbeac67456c9 #59
>   Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014
>   Workqueue: events mptcp_worker
>   RIP: 0010:__mptcp_clean_una+0x4b3/0x620 net/mptcp/protocol.c:1005
>   Code: be 06 01 00 00 bf 06 01 00 00 e8 a8 12 e7 fe e9 00 fe ff ff e8
>   	8e 1a e7 fe 0f b7 ab 3e 02 00 00 e9 d3 fd ff ff e8 7d 1a e7 fe
>   	<0f> 0b 4c 8b bb e0 05 00 00 e9 74 fc ff ff e8 6a 1a e7 fe 0f 0b e9
>   RSP: 0018:ffffc9000013fd48 EFLAGS: 00010293
>   RAX: 0000000000000000 RBX: ffff8881029bd280 RCX: ffffffff82382fe4
>   RDX: ffff8881003cbd00 RSI: ffffffff823833c3 RDI: 0000000000000001
>   RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
>   R10: 0000000000000000 R11: fefefefefefefeff R12: ffff888138ba8000
>   R13: 0000000000000106 R14: ffff8881029bd908 R15: ffff888126560000
>   FS:  0000000000000000(0000) GS:ffff88813bd00000(0000) knlGS:0000000000000000
>   CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>   CR2: 00007f604a5dae38 CR3: 0000000101dac002 CR4: 0000000000170ef0
>   Call Trace:
>    <TASK>
>    __mptcp_clean_una_wakeup net/mptcp/protocol.c:1055 [inline]
>    mptcp_clean_una_wakeup net/mptcp/protocol.c:1062 [inline]
>    __mptcp_retrans+0x7f/0x7e0 net/mptcp/protocol.c:2615
>    mptcp_worker+0x434/0x740 net/mptcp/protocol.c:2767
>    process_one_work+0x1e0/0x560 kernel/workqueue.c:3254
>    process_scheduled_works kernel/workqueue.c:3335 [inline]
>    worker_thread+0x3c7/0x640 kernel/workqueue.c:3416
>    kthread+0x121/0x170 kernel/kthread.c:388
>    ret_from_fork+0x44/0x50 arch/x86/kernel/process.c:147
>    ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
>    </TASK>
> 
> [...]

Here is the summary with links:
  - [net] mptcp: ensure snd_nxt is properly initialized on connect
    https://git.kernel.org/netdev/net/c/fb7a0d334894

You are awesome, thank you!
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