Re: [PATCH nf] netfilter: ensure rcu_read_lock() in ipv4_find_option()
From: Florian Westphal
Date: Mon Feb 24 2020 - 14:12:01 EST
Matteo Croce <mcroce@xxxxxxxxxx> 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.