linux-kernel - Re: [PATCH bpf] bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data

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Date: Wed, 21 Feb 2024 16:20:27 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Shigeru Yoshida <syoshida@...hat.com>
Cc: john.fastabend@...il.com, jakub@...udflare.com, davem@...emloft.net,
 edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org,
 bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
 syzbot+fd7b34375c1c8ce29c93@...kaller.appspotmail.com
Subject: Re: [PATCH bpf] bpf,
 sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()

Hello:

This patch was applied to bpf/bpf.git (master)
by Daniel Borkmann <daniel@...earbox.net>:

On Mon, 19 Feb 2024 00:09:33 +0900 you wrote:
> syzbot reported the following NULL pointer dereference issue [1]:
> 
> BUG: kernel NULL pointer dereference, address: 0000000000000000
> ...
> RIP: 0010:0x0
> ...
> Call Trace:
>  <TASK>
>  sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230
>  unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293
>  sock_sendmsg_nosec net/socket.c:730 [inline]
>  __sock_sendmsg+0x221/0x270 net/socket.c:745
>  ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
>  ___sys_sendmsg net/socket.c:2638 [inline]
>  __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
>  do_syscall_64+0xf9/0x240
>  entry_SYSCALL_64_after_hwframe+0x6f/0x77
> 
> [...]

Here is the summary with links:
  - [bpf] bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
    https://git.kernel.org/bpf/bpf/c/4cd12c6065df

You are awesome, thank you!
-- 
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