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From: patchwork-bot+netdevbpf@kernel.org
To: =?utf-8?q?Ricardo_Ca=C3=B1uelo_Navarro_=3Crcn=40igalia=2Ecom=3E?=@aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org
Cc: marcelo.leitner@gmail.com, lucien.xin@gmail.com,
	davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, horms@kernel.org, revest@google.com,
	kernel-dev@igalia.com, linux-sctp@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: Re: [PATCH] sctp: detect and prevent references to a freed transport in sendmsg
Date: Tue, 08 Apr 2025 09:40:32 +0000	[thread overview]
Message-ID: <174410523201.1843579.6108769809547984395.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20250404-kasan_slab-use-after-free_read_in_sctp_outq_select_transport__20250404-v1-1-5ce4a0b78ef2@igalia.com>

Hello:

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

On Fri, 04 Apr 2025 16:53:21 +0200 you wrote:
> sctp_sendmsg() re-uses associations and transports when possible by
> doing a lookup based on the socket endpoint and the message destination
> address, and then sctp_sendmsg_to_asoc() sets the selected transport in
> all the message chunks to be sent.
> 
> There's a possible race condition if another thread triggers the removal
> of that selected transport, for instance, by explicitly unbinding an
> address with setsockopt(SCTP_SOCKOPT_BINDX_REM), after the chunks have
> been set up and before the message is sent. This can happen if the send
> buffer is full, during the period when the sender thread temporarily
> releases the socket lock in sctp_wait_for_sndbuf().
> 
> [...]

Here is the summary with links:
  - sctp: detect and prevent references to a freed transport in sendmsg
    https://git.kernel.org/netdev/net/c/f1a69a940de5

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



      parent reply	other threads:[~2025-04-08  9:39 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-04 14:53 [PATCH] sctp: detect and prevent references to a freed transport in sendmsg Ricardo Cañuelo Navarro
2025-04-07 15:05 ` Xin Long
2025-04-08  9:40 ` patchwork-bot+netdevbpf [this message]

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