netdev - Re: [PATCH net] ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc

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Message-ID: <CANn89iJ6LERiNz_Uj0NTVLiDCWdHqFjmeMGk=XopF=LgnFj7ig@mail.gmail.com>
Date: Mon, 8 Jan 2024 10:36:23 +0100
From: Eric Dumazet <edumazet@...gle.com>
To: David Ahern <dsahern@...nel.org>
Cc: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Willem de Bruijn <willemb@...gle.com>, netdev@...r.kernel.org, 
	eric.dumazet@...il.com, syzbot <syzkaller@...glegroups.com>
Subject: Re: [PATCH net] ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()

On Sat, Jan 6, 2024 at 5:10 PM David Ahern <dsahern@...nel.org> wrote:

> you dropped the comment above the may_pull which is helpful for reviewers.
>

Yes, this is because I reload "hdr = (struct ipv6_opt_hdr *)(skb->data
+ off);" right after the pskb_may_pull(),
so there is no more stale pointer.

Thanks.