netdev - Re: [PATCH v1 net-next] af_unix: Don't access successor in unix_del

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Message-Id: 
 <171387962795.30639.15729476746620345894.git-patchwork-notify@kernel.org>
Date: Tue, 23 Apr 2024 13:40:27 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Kuniyuki Iwashima <kuniyu@...zon.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, kuni1840@...il.com, netdev@...r.kernel.org,
 syzbot+f3f3eef1d2100200e593@...kaller.appspotmail.com
Subject: Re: [PATCH v1 net-next] af_unix: Don't access successor in
 unix_del_edges() during GC.

Hello:

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

On Fri, 19 Apr 2024 16:51:02 -0700 you wrote:
> syzbot reported use-after-free in unix_del_edges().  [0]
> 
> What the repro does is basically repeat the following quickly.
> 
>   1. pass a fd of an AF_UNIX socket to itself
> 
>     socketpair(AF_UNIX, SOCK_DGRAM, 0, [3, 4]) = 0
>     sendmsg(3, {..., msg_control=[{cmsg_len=20, cmsg_level=SOL_SOCKET,
>                                    cmsg_type=SCM_RIGHTS, cmsg_data=[4]}], ...}, 0) = 0
> 
> [...]

Here is the summary with links:
  - [v1,net-next] af_unix: Don't access successor in unix_del_edges() during GC.
    https://git.kernel.org/netdev/net-next/c/1af2dface5d2

You are awesome, thank you!
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