linux-kernel - Re: [PATCH net, v4] net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso

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Message-Id: <168413701982.26935.1923610991191473208.git-patchwork-notify@kernel.org>
Date:   Mon, 15 May 2023 07:50:19 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Dong Chenchen <dongchenchen2@...wei.com>
Cc:     edumazet@...gle.com, kuba@...nel.org, davem@...emloft.net,
        pabeni@...hat.com, simon.horman@...igine.com, jbenc@...hat.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        yuehaibing@...wei.com, weiyongjun1@...wei.com,
        syzbot+632b5d9964208bfef8c0@...kaller.appspotmail.com
Subject: Re: [PATCH net,
 v4] net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Thu, 11 May 2023 20:54:40 +0800 you wrote:
> As the call trace shows, skb_panic was caused by wrong skb->mac_header
> in nsh_gso_segment():
> 
> invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
> CPU: 3 PID: 2737 Comm: syz Not tainted 6.3.0-next-20230505 #1
> RIP: 0010:skb_panic+0xda/0xe0
> call Trace:
>  skb_push+0x91/0xa0
>  nsh_gso_segment+0x4f3/0x570
>  skb_mac_gso_segment+0x19e/0x270
>  __skb_gso_segment+0x1e8/0x3c0
>  validate_xmit_skb+0x452/0x890
>  validate_xmit_skb_list+0x99/0xd0
>  sch_direct_xmit+0x294/0x7c0
>  __dev_queue_xmit+0x16f0/0x1d70
>  packet_xmit+0x185/0x210
>  packet_snd+0xc15/0x1170
>  packet_sendmsg+0x7b/0xa0
>  sock_sendmsg+0x14f/0x160
> 
> [...]

Here is the summary with links:
  - [net,v4] net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment()
    https://git.kernel.org/netdev/net/c/c83b49383b59

You are awesome, thank you!
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