netdev - Re: [PATCH v1 net] netrom: Fix use-after-free of a listening socket.

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Date:   Tue, 24 Jan 2023 11:30:16 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Kuniyuki Iwashima <kuniyu@...zon.com>
Cc:     ralf@...ux-mips.org, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, phind.uet@...il.com,
        kuni1840@...il.com, netdev@...r.kernel.org,
        linux-hams@...r.kernel.org,
        syzbot+5fafd5cfe1fc91f6b352@...kaller.appspotmail.com
Subject: Re: [PATCH v1 net] netrom: Fix use-after-free of a listening socket.

Hello:

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

On Fri, 20 Jan 2023 15:19:27 -0800 you wrote:
> syzbot reported a use-after-free in do_accept(), precisely nr_accept()
> as sk_prot_alloc() allocated the memory and sock_put() frees it. [0]
> 
> The issue could happen if the heartbeat timer is fired and
> nr_heartbeat_expiry() calls nr_destroy_socket(), where a socket
> has SOCK_DESTROY or a listening socket has SOCK_DEAD.
> 
> [...]

Here is the summary with links:
  - [v1,net] netrom: Fix use-after-free of a listening socket.
    https://git.kernel.org/netdev/net/c/409db27e3a2e

You are awesome, thank you!
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