netdev - Re: [PATCH v2] net: ppp: Add bound checking for skb d on ppp_sync

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Message-Id: 
 <174427803852.3591786.2538899437111580046.git-patchwork-notify@kernel.org>
Date: Thu, 10 Apr 2025 09:40:38 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Arnaud Lecomte <contact@...aud-lcm.com>
Cc: andrew+netdev@...n.ch, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, linux-ppp@...r.kernel.org,
 netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 skhan@...uxfoundation.org,
 syzbot+29fc8991b0ecb186cf40@...kaller.appspotmail.com
Subject: Re: [PATCH v2] net: ppp: Add bound checking for skb d on
 ppp_sync_txmung

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Tue, 08 Apr 2025 17:55:08 +0200 you wrote:
> Ensure we have enough data in linear buffer from skb before accessing
> initial bytes. This prevents potential out-of-bounds accesses
> when processing short packets.
> 
> When ppp_sync_txmung receives an incoming package with an empty
> payload:
> (remote) gef➤  p *(struct pppoe_hdr *) (skb->head + skb->network_header)
> $18 = {
> 	type = 0x1,
> 	ver = 0x1,
> 	code = 0x0,
> 	sid = 0x2,
>         length = 0x0,
> 	tag = 0xffff8880371cdb96
> }
> 
> [...]

Here is the summary with links:
  - [v2] net: ppp: Add bound checking for skb d on ppp_sync_txmung
    https://git.kernel.org/netdev/net/c/aabc6596ffb3

You are awesome, thank you!
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