Re: [PATCH net] mptcp: fix soft lockup in mptcp_recvmsg()

[Paolo Abeni]

On 3/2/26 6:26 AM, Li Xiasong wrote:
> @@ -2343,7 +2347,7 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
>  
>  		pr_debug("block timeout %ld\n", timeo);
>  		mptcp_cleanup_rbuf(msk, copied);
> -		err = sk_wait_data(sk, &timeo, NULL);
> +		err = sk_wait_data(sk, &timeo, last);

Isn't
		err = sk_wait_data(sk, &timeo,  skb_peek_tail(&sk->sk_receive_queue));

Enough?

Also, could you please add a paired tests-case? Thanks!

Paolo