Re: [PATCH v4 net 0/6] net/sched: Fixes for sch_ingress and sch_clsact

[Peilin Ye]

On Tue, May 23, 2023 at 12:12:39AM -0700, Peilin Ye wrote:
> [1,2/6]: ingress and clsact Qdiscs should only be created under ffff:fff1
>   [3/6]: Under ffff:fff1, only create ingress and clsact Qdiscs (for now,
>          at least)
>   [4/6]: After creating ingress and clsact Qdiscs under ffff:fff1, do not
>          graft them again to anywhere else (e.g. as the inner Qdisc of a
>          TBF Qdisc)
>   [5/6]: Prepare for [6/6], do not reuse that for-loop in qdisc_graft()
>          for ingress and clsact Qdiscs
>   [6/6]: Fix use-after-free [a] in mini_qdisc_pair_swap()

In v5, I'll improve [6/6] according to Vlad's suggestion [a], and fix
[1,2/6] according to Pedro's report [b].

[a] https://lore.kernel.org/r/87sfbnxhg7.fsf@xxxxxxxxxx/
[b] https://lore.kernel.org/r/e462a91e-8bea-8b72-481c-4a36699e4149@xxxxxxxxxxxx/

Thanks,
Peilin Ye