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From: Eric Dumazet <edumazet@google.com>
Date: Mon, 25 Mar 2024 14:59:09 +0100
Message-ID: <CANn89i+gqBKX-BkY58M0vWfRLsOy2RqyFqX8cwjqo3xacYGXbA@mail.gmail.com>
Subject: Re: [PATCH v2] net: mark racy access on sk->sk_rcvbuf
To: linke li <lilinke99@qq.com>
Cc: xujianhao01@gmail.com, "David S. Miller" <davem@davemloft.net>, 
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, 
	Kuniyuki Iwashima <kuniyu@amazon.com>, Willem de Bruijn <willemb@google.com>, 
	Abel Wu <wuyun.abel@bytedance.com>, Breno Leitao <leitao@debian.org>, 
	Alexander Mikhalitsyn <alexander@mihalicyn.com>, David Howells <dhowells@redhat.com>, netdev@vger.kernel.org, 
	linux-kernel@vger.kernel.org
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On Thu, Mar 21, 2024 at 9:44=E2=80=AFAM linke li <lilinke99@qq.com> wrote:
>
> sk->sk_rcvbuf in __sock_queue_rcv_skb() and __sk_receive_skb() can be
> changed by other threads. Mark this as benign using READ_ONCE().
>
> This patch is aimed at reducing the number of benign races reported by
> KCSAN in order to focus future debugging effort on harmful races.
>
> Signed-off-by: linke li <lilinke99@qq.com>
> ---
> v1 -> v2: include sk->sk_rcvbuf in __sock_queue_rcv_skb()

Reviewed-by: Eric Dumazet <edumazet@google.com>