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From: Jakub Kicinski <kuba@kernel.org>
To: Eric Dumazet <edumazet@google.com>
Cc: "David S . Miller" <davem@davemloft.net>,
	Paolo Abeni <pabeni@redhat.com>,
	netdev@vger.kernel.org, eric.dumazet@gmail.com,
	Josef Bacik <josef@toxicpanda.com>,
	Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Subject: Re: [PATCH net] tcp: properly terminate timers for kernel sockets
Date: Fri, 22 Mar 2024 15:47:04 -0700	[thread overview]
Message-ID: <20240322154704.7ed4d55f@kernel.org> (raw)
In-Reply-To: <20240322135732.1535772-1-edumazet@google.com>

On Fri, 22 Mar 2024 13:57:32 +0000 Eric Dumazet wrote:
> +	if (!sk->sk_net_refcnt)
> +		inet_csk_clear_xmit_timers_sync(sk);

The thought that we should clear or poison sk_net at this point
(whether sk->sk_net_refcnt or not) keeps coming back to me.
If we don't guarantee the pointer is valid - to make it easier
for syzbot to catch invalid accesses?

  parent reply	other threads:[~2024-03-22 22:47 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-22 13:57 [PATCH net] tcp: properly terminate timers for kernel sockets Eric Dumazet
2024-03-22 14:58 ` Josef Bacik
2024-03-22 22:47 ` Jakub Kicinski [this message]
2024-03-23  4:45   ` Eric Dumazet
2024-03-25 13:34     ` Jakub Kicinski
2024-03-26  3:10 ` patchwork-bot+netdevbpf

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