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From: patchwork-bot+netdevbpf@kernel.org
To: Bryam Vargas <hexlabsecurity@proton.me>
Cc: pabeni@redhat.com, kuba@kernel.org, edumazet@google.com,
	davem@davemloft.net, twinkler@linux.ibm.com,
	wintera@linux.ibm.com, nagamani@linux.ibm.com, horms@kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-s390@vger.kernel.org
Subject: Re: [PATCH net] net/iucv: take a reference on the socket found in afiucv_hs_rcv()
Date: Fri, 10 Jul 2026 14:30:06 +0000	[thread overview]
Message-ID: <178369380615.710487.10375995602211210819.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260705-b4-disp-fc79c0dc-v1-1-d2cdcb57afa9@proton.me>

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@redhat.com>:

On Sun, 05 Jul 2026 22:24:36 -0500 you wrote:
> From: Bryam Vargas <hexlabsecurity@proton.me>
> 
> afiucv_hs_rcv() looks up the destination socket under iucv_sk_list.lock,
> drops the lock, and then passes the socket to the afiucv_hs_callback_*()
> handlers without holding a reference. AF_IUCV sockets are not
> RCU-protected and are freed synchronously by iucv_sock_kill() ->
> sock_put(), so a concurrent close can free the socket in the window
> between read_unlock() and the handler, which then dereferences freed
> memory (for example sk->sk_data_ready() in afiucv_hs_callback_syn()).
> 
> [...]

Here is the summary with links:
  - [net] net/iucv: take a reference on the socket found in afiucv_hs_rcv()
    https://git.kernel.org/netdev/net/c/4fa349156043

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html



      parent reply	other threads:[~2026-07-10 14:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-06  3:24 [PATCH net] net/iucv: take a reference on the socket found in afiucv_hs_rcv() Bryam Vargas via B4 Relay
2026-07-06  3:24 ` Bryam Vargas
2026-07-07  3:24 ` sashiko-bot
2026-07-09 17:17   ` Alexandra Winter
2026-07-11  4:11     ` Bryam Vargas
2026-07-08 16:06 ` Hidayathulla Khan I
2026-07-08 16:45 ` Hidayathulla Khan I
2026-07-10 14:30 ` patchwork-bot+netdevbpf [this message]

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