Subject: Re: [PATCH nf] netfilter: ensure rcu_read_lock() in ipv4_find_option()

From: Florian Westphal <[email-masked]>
Date: Mon, 24 Feb 2020 20:11:54 +0100

Matteo Croce <[email-masked]> wrote:
> As in commit c543cb4a5f07 ("ipv4: ensure rcu_read_lock() in ipv4_link_failure()")
> and commit 3e72dfdf8227 ("ipv4: ensure rcu_read_lock() in cipso_v4_error()"),
> __ip_options_compile() must be called under rcu protection.

This is not needed, all netfilter hooks run with rcu_read_lock held.