Re: [PATCH net-next v3 0/5] net/sched: reject oversized action dumps and cap unbounded entry lists

[patchwork-bot+netdevbpf@kernel.org]

Hello:

This series was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 13 Oct 2026 04:54:26 -0400 you wrote:
> An action dump is carried inside nested netlink attributes whose lengths
> are u16. When a single action's dump does not fit, a plain nla_nest_end()
> writes a wrapped length and the kernel hands userspace a corrupt reply; on
> the classifier path the -EMSGSIZE this produces is mistaken for socket
> buffer exhaustion and retried in a loop that can never succeed.
> 
> Patch 1 makes every nest an action dump can be carried in fail cleanly
> (-EMSGSIZE) instead of wrapping, bounds the tfilter_notify_prep() retry,
> and stops a notification that cannot be built from vetoing a filter or
> action delete. Patch 2 stops an action add whose actions were already
> committed from being reported as a failure when the notification cannot
> be built. Patch 3 caps the number of gate scheduling entries at 1024,
> rejected with -E2BIG and an extack message. Patch 4 caps the number of
> taprio schedule entries at 1024 in the same way. Patch 5 makes the action
> dump report an action that cannot be serialized into one dump skb as
> -EMSGSIZE instead of returning success and silently dropping the rest of
> the list.
> 
> [...]

Here is the summary with links:
  - [net-next,v3,1/5] net/sched: act_gate: reject oversized dumps instead of wrapping them
    https://git.kernel.org/netdev/net-next/c/ed9e404dcf9b
  - [net-next,v3,2/5] net/sched: act_api: keep an add that created its actions from failing
    https://git.kernel.org/netdev/net-next/c/1a49567560a1
  - [net-next,v3,3/5] net/sched: act_gate: cap the number of scheduling entries
    https://git.kernel.org/netdev/net-next/c/150167ea4d7a
  - [net-next,v3,4/5] net/sched: sch_taprio: cap the number of schedule entries
    https://git.kernel.org/netdev/net-next/c/2bc124a5f8df
  - [net-next,v3,5/5] net/sched: act_api: report an oversized action dump instead of silently truncating it
    https://git.kernel.org/netdev/net-next/c/10a486c17dff

You are awesome, thank you!
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