netdev - Re: [PATCH net] vlan: fix a potential uninit-value in vlan_dev_hard_start

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Message-Id: 
 <168432482014.30872.16293912678961566657.git-patchwork-notify@kernel.org>
Date: Wed, 17 May 2023 12:00:20 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Eric Dumazet <edumazet@...gle.com>
Cc: davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
 netdev@...r.kernel.org, eric.dumazet@...il.com, syzkaller@...glegroups.com
Subject: Re: [PATCH net] vlan: fix a potential uninit-value in
 vlan_dev_hard_start_xmit()

Hello:

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

On Tue, 16 May 2023 14:23:42 +0000 you wrote:
> syzbot triggered the following splat [1], sending an empty message
> through pppoe_sendmsg().
> 
> When VLAN_FLAG_REORDER_HDR flag is set, vlan_dev_hard_header()
> does not push extra bytes for the VLAN header, because vlan is offloaded.
> 
> Unfortunately vlan_dev_hard_start_xmit() first reads veth->h_vlan_proto
> before testing (vlan->flags & VLAN_FLAG_REORDER_HDR).
> 
> [...]

Here is the summary with links:
  - [net] vlan: fix a potential uninit-value in vlan_dev_hard_start_xmit()
    https://git.kernel.org/netdev/net/c/dacab578c7c6

You are awesome, thank you!
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