netdev - Re: [PATCH v2 net] af_packet: Don't send zero-byte data in packet_sendmsg

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Date: Wed, 03 May 2023 08:30:20 +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, willemdebruijn.kernel@...il.com, shaozhengchao@...wei.com,
 kuni1840@...il.com, netdev@...r.kernel.org, syzkaller@...glegroups.com
Subject: Re: [PATCH v2 net] af_packet: Don't send zero-byte data in
 packet_sendmsg_spkt().

Hello:

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

On Mon, 1 May 2023 13:28:57 -0700 you wrote:
> syzkaller reported a warning below [0].
> 
> We can reproduce it by sending 0-byte data from the (AF_PACKET,
> SOCK_PACKET) socket via some devices whose dev->hard_header_len
> is 0.
> 
>     struct sockaddr_pkt addr = {
>         .spkt_family = AF_PACKET,
>         .spkt_device = "tun0",
>     };
>     int fd;
> 
> [...]

Here is the summary with links:
  - [v2,net] af_packet: Don't send zero-byte data in packet_sendmsg_spkt().
    https://git.kernel.org/netdev/net/c/6a341729fb31

You are awesome, thank you!
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