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From: patchwork-bot+netdevbpf@kernel.org
To: Chengfeng Ye <nicoyip.dev@gmail.com>
Cc: alibuda@linux.alibaba.com, dust.li@linux.alibaba.com,
	sidraya@linux.ibm.com, mjambigi@linux.ibm.com,
	tonylu@linux.alibaba.com, guwen@linux.alibaba.com,
	davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org,
	pabeni@redhat.com, horms@kernel.org, linux-rdma@vger.kernel.org,
	linux-s390@vger.kernel.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, stable@vger.kernel.org
Subject: Re: [PATCH net v3] net/smc: protect clcsock lifetime in smc_getname
Date: Thu, 08 Oct 2026 18:50:14 +0000	[thread overview]
Message-ID: <179148541452.391001.7821092438083356989.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20261008084444.787449-1-nicoyip.dev@gmail.com>

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Thu,  8 Oct 2026 16:44:44 +0800 you wrote:
> smc_getname() dereferences smc->clcsock without holding
> clcsock_release_lock. Link-group termination can release the CLC socket
> through smc_close_active_abort() while the SMC socket is still open,
> for example after shutdown(SHUT_WR).
> 
> A getsockname() caller can load smc->clcsock, then the termination worker
> can clear the pointer and call sock_release() before the caller accesses
> clcsock->ops or invokes getname(). This causes a use-after-free; if the
> worker clears the pointer before the load, it causes a NULL dereference.
> The syscall's file reference keeps the SMC socket alive but does not
> prevent asynchronous release of its CLC socket.
> 
> [...]

Here is the summary with links:
  - [net,v3] net/smc: protect clcsock lifetime in smc_getname
    https://git.kernel.org/netdev/net/c/64a6b36b0e18

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



      parent reply	other threads:[~2026-10-08 18:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-08  8:44 Chengfeng Ye
2026-10-08  8:53 ` Mahanta Jambigi
2026-10-08 15:48 ` Dust Li
2026-10-08 18:50 ` patchwork-bot+netdevbpf [this message]

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