Re: [PATCH net] net: raw: fix ICMP unreachable sent when receive queue is full

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Wed,  4 Nov 2026 19:57:26 +0800 you wrote:
> It's found in a raw socket application. When the application doesn't
> read packets in time, the client receives ICMP Protocol Unreachable,
> which makes the client abort the session.
> 
> The reason is that the server hits the sk_rcvbuf limit, and
> raw_v4_input() skips the socket before setting 'delivered', so it
> returns 0. Then ip_protocol_deliver_rcu() sees 'raw' is 0, thinks no one
> handles this protocol and calls icmp_send() to send ICMP Protocol
> Unreachable.
> 
> [...]

Here is the summary with links:
  - [net] net: raw: fix ICMP unreachable sent when receive queue is full
    https://git.kernel.org/netdev/net/c/45441a94d502

You are awesome, thank you!
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