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Date:   Sat, 21 Nov 2020 23:22:49 +0100
From:   Florian Westphal <>
To:     Cong Wang <>
Cc:, Cong Wang <>,, Florian Westphal <>,
        Edward Cree <>,,
        Greg Kroah-Hartman <>
Subject: Re: [Patch stable] netfilter: clear skb->next in NF_HOOK_LIST()

Cong Wang <> wrote:
> From: Cong Wang <>
> NF_HOOK_LIST() uses list_del() to remove skb from the linked list,
> however, it is not sufficient as skb->next still points to other
> skb. We should just call skb_list_del_init() to clear skb->next,
> like the rest places which using skb list.
> This has been fixed in upstream by commit ca58fbe06c54
> ("netfilter: add and use nf_hook_slow_list()").

Thanks Cong, agree with this change, afaics its applicable to 4.19.y and 5.4.y.

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