From: patchwork-bot+netdevbpf@kernel.org
To: Duoming Zhou <duoming@zju.edu.cn>
Cc: linux-x25@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, ms@dev.tdt.de, davem@davemloft.net,
kuba@kernel.org, pabeni@redhat.com, tanxin.ctf@gmail.com,
xiyuyang19@fudan.edu.cn, linma@zju.edu.cn
Subject: Re: [PATCH net V2] net/x25: Fix null-ptr-deref caused by x25_disconnect
Date: Sat, 26 Mar 2022 18:50:10 +0000 [thread overview]
Message-ID: <164832061055.28772.13748131132872742265.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20220326104346.91790-1-duoming@zju.edu.cn>
Hello:
This patch was applied to netdev/net.git (master)
by David S. Miller <davem@davemloft.net>:
On Sat, 26 Mar 2022 18:43:46 +0800 you wrote:
> When the link layer is terminating, x25->neighbour will be set to NULL
> in x25_disconnect(). As a result, it could cause null-ptr-deref bugs in
> x25_sendmsg(),x25_recvmsg() and x25_connect(). One of the bugs is
> shown below.
>
> (Thread 1) | (Thread 2)
> x25_link_terminated() | x25_recvmsg()
> x25_kill_by_neigh() | ...
> x25_disconnect() | lock_sock(sk)
> ... | ...
> x25->neighbour = NULL //(1) |
> ... | x25->neighbour->extended //(2)
>
> [...]
Here is the summary with links:
- [net,V2] net/x25: Fix null-ptr-deref caused by x25_disconnect
https://git.kernel.org/netdev/net/c/7781607938c8
You are awesome, thank you!
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prev parent reply other threads:[~2022-03-26 18:50 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-26 10:43 [PATCH net V2] net/x25: Fix null-ptr-deref caused by x25_disconnect Duoming Zhou
2022-03-26 18:50 ` patchwork-bot+netdevbpf [this message]
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