linux-kernel - Re: [PATCH net v2] ipv4: ip_gre: Avoid skb_pull() failure in ipgre

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Message-Id: <170185442293.26512.8602654945960747871.git-patchwork-notify@kernel.org>
Date:   Wed, 06 Dec 2023 09:20:22 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Shigeru Yoshida <syoshida@...hat.com>
Cc:     davem@...emloft.net, dsahern@...nel.org, edumazet@...gle.com,
        kuba@...nel.org, pabeni@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net v2] ipv4: ip_gre: Avoid skb_pull() failure in ipgre_xmit()

Hello:

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

On Sun,  3 Dec 2023 01:14:41 +0900 you wrote:
> In ipgre_xmit(), skb_pull() may fail even if pskb_inet_may_pull() returns
> true. For example, applications can use PF_PACKET to create a malformed
> packet with no IP header. This type of packet causes a problem such as
> uninit-value access.
> 
> This patch ensures that skb_pull() can pull the required size by checking
> the skb with pskb_network_may_pull() before skb_pull().
> 
> [...]

Here is the summary with links:
  - [net,v2] ipv4: ip_gre: Avoid skb_pull() failure in ipgre_xmit()
    https://git.kernel.org/netdev/net/c/80d875cfc9d3

You are awesome, thank you!
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