netdev - Re: [PATCH net] net: bridge: xmit: make sure we have at least eth header len bytes

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Message-Id: 
 <171577022971.14646.4487627386797578993.git-patchwork-notify@kernel.org>
Date: Wed, 15 May 2024 10:50:29 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Nikolay Aleksandrov <razor@...ckwall.org>
Cc: netdev@...r.kernel.org, roopa@...dia.com, bridge@...ts.linux.dev,
 davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com, pabeni@...hat.com,
 syzkaller-bugs@...glegroups.com,
 syzbot+a63a1f6a062033cf0f40@...kaller.appspotmail.com
Subject: Re: [PATCH net] net: bridge: xmit: make sure we have at least eth header
 len bytes

Hello:

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

On Mon, 13 May 2024 13:34:19 +0300 you wrote:
> syzbot triggered an uninit value[1] error in bridge device's xmit path
> by sending a short (less than ETH_HLEN bytes) skb. To fix it check if
> we can actually pull that amount instead of assuming.
> 
> Tested with dropwatch:
>  drop at: br_dev_xmit+0xb93/0x12d0 [bridge] (0xffffffffc06739b3)
>  origin: software
>  timestamp: Mon May 13 11:31:53 2024 778214037 nsec
>  protocol: 0x88a8
>  length: 2
>  original length: 2
>  drop reason: PKT_TOO_SMALL
> 
> [...]

Here is the summary with links:
  - [net] net: bridge: xmit: make sure we have at least eth header len bytes
    https://git.kernel.org/netdev/net/c/8bd67ebb50c0

You are awesome, thank you!
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