Re: [PATCH net v2] ppp_async: drop the errored frame instead of resetting its headroom

[patchwork-bot+netdevbpf]

Hello:

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

On Thu, 3 Sep 2026 08:21:29 +0200 you wrote:
> ppp_receive_nonmp_frame() prepends a two-byte direction tag before running
> the pass/active BPF filters:
> 
> 	*(__be16 *)skb_push(skb, 2) = htons(PPP_FILTER_INBOUND_TAG);
> 
> Nothing on the receive path guarantees those two bytes of headroom. The
> frame-error path in ppp_async's process_input_packet() resets a reused skb's
> headroom to zero while claiming to restore it to a freshly allocated state -
> but a fresh skb from dev_alloc_skb() carries NET_SKB_PAD:
> 
> [...]

Here is the summary with links:
  - [net,v2] ppp_async: drop the errored frame instead of resetting its headroom
    https://git.kernel.org/netdev/net/c/8dc5d98a16fa

You are awesome, thank you!
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