netdev - Re: [PATCH net] rxrpc: Restore removed timer deletion

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Message-Id: <165001681173.2816.15053036697858965608.git-patchwork-notify@kernel.org>
Date:   Fri, 15 Apr 2022 10:00:11 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     David Howells <dhowells@...hat.com>
Cc:     netdev@...r.kernel.org, edumazet@...gle.com,
        marc.dionne@...istor.com, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] rxrpc: Restore removed timer deletion

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Wed, 13 Apr 2022 11:16:25 +0100 you wrote:
> A recent patch[1] from Eric Dumazet flipped the order in which the
> keepalive timer and the keepalive worker were cancelled in order to fix a
> syzbot reported issue[2].  Unfortunately, this enables the mirror image bug
> whereby the timer races with rxrpc_exit_net(), restarting the worker after
> it has been cancelled:
> 
> 	CPU 1		CPU 2
> 	===============	=====================
> 			if (rxnet->live)
> 			<INTERRUPT>
> 	rxnet->live = false;
>  	cancel_work_sync(&rxnet->peer_keepalive_work);
> 			rxrpc_queue_work(&rxnet->peer_keepalive_work);
> 	del_timer_sync(&rxnet->peer_keepalive_timer);
> 
> [...]

Here is the summary with links:
  - [net] rxrpc: Restore removed timer deletion
    https://git.kernel.org/netdev/net/c/ee3b0826b476

You are awesome, thank you!
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