From: patchwork-bot+netdevbpf@kernel.org
To: David Howells <dhowells@redhat.com>
Cc: netdev@vger.kernel.org, edumazet@google.com,
marc.dionne@auristor.com, linux-afs@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] rxrpc: Restore removed timer deletion
Date: Fri, 15 Apr 2022 10:00:11 +0000 [thread overview]
Message-ID: <165001681173.2816.15053036697858965608.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <164984498582.2000115.4023190177137486137.stgit@warthog.procyon.org.uk>
Hello:
This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.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!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2022-04-15 10:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-13 10:16 David Howells
2022-04-13 17:14 ` Eric Dumazet
2022-04-13 17:41 ` David Howells
2022-04-13 17:53 ` Eric Dumazet
2022-04-15 10:00 ` patchwork-bot+netdevbpf [this message]
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