22 Nov
2020
22 Nov
'20
5:24 p.m.
On Sat, Nov 21, 2020 at 11:22:49PM +0100, Florian Westphal wrote:
Cong Wang xiyou.wangcong@gmail.com wrote:
From: Cong Wang cong.wang@bytedance.com
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.
Queued for 5.4 and 4.19, thanks!
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Thanks,
Sasha