linux-kernel - Re: [PATCH net v2] net: fix NULL pointer dereference in l3mdev_l3

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Message-Id: 
 <174291663751.618403.8982725389393074966.git-patchwork-notify@kernel.org>
Date: Tue, 25 Mar 2025 15:30:37 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Wang Liang <wangliang74@...wei.com>
Cc: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, dsahern@...nel.org, horms@...nel.org,
 gnault@...hat.com, daniel@...earbox.net, fw@...len.de, yuehaibing@...wei.com,
 zhangchangzhong@...wei.com, netdev@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v2] net: fix NULL pointer dereference in l3mdev_l3_rcv

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@...nel.org>:

On Fri, 21 Mar 2025 17:03:53 +0800 you wrote:
> When delete l3s ipvlan:
> 
>     ip link del link eth0 ipvlan1 type ipvlan mode l3s
> 
> This may cause a null pointer dereference:
> 
>     Call trace:
>      ip_rcv_finish+0x48/0xd0
>      ip_rcv+0x5c/0x100
>      __netif_receive_skb_one_core+0x64/0xb0
>      __netif_receive_skb+0x20/0x80
>      process_backlog+0xb4/0x204
>      napi_poll+0xe8/0x294
>      net_rx_action+0xd8/0x22c
>      __do_softirq+0x12c/0x354
> 
> [...]

Here is the summary with links:
  - [net,v2] net: fix NULL pointer dereference in l3mdev_l3_rcv
    https://git.kernel.org/netdev/net/c/0032c99e83b9

You are awesome, thank you!
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