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From: Jakub Kicinski <kuba@kernel.org>
To: Sabrina Dubroca <sd@queasysnail.net>
Cc: netdev@vger.kernel.org, Vadim Fedorenko <vfedorenko@novek.ru>,
	Frantisek Krenzelok <fkrenzel@redhat.com>,
	Kuniyuki Iwashima <kuniyu@amazon.com>,
	Apoorv Kothari <apoorvko@amazon.com>,
	Boris Pismenny <borisp@nvidia.com>,
	John Fastabend <john.fastabend@gmail.com>,
	Shuah Khan <shuah@kernel.org>,
	linux-kselftest@vger.kernel.org, Gal Pressman <gal@nvidia.com>,
	Marcel Holtmann <marcel@holtmann.org>
Subject: Re: [PATCH net-next v2 2/5] tls: block decryption when a rekey is pending
Date: Tue, 14 Feb 2023 21:09:25 -0800	[thread overview]
Message-ID: <20230214210925.23c005b1@kernel.org> (raw)
In-Reply-To: <4a9a82a0eaa47319e0e7a7fe525bd37f25b61cb5.1676052788.git.sd@queasysnail.net>

On Tue, 14 Feb 2023 12:17:39 +0100 Sabrina Dubroca wrote:
> @@ -2141,6 +2178,12 @@ ssize_t tls_sw_splice_read(struct socket *sock,  loff_t *ppos,
>  	if (err < 0)
>  		return err;
>  
> +	/* a rekey is pending, let userspace deal with it */
> +	if (unlikely(ctx->key_update_pending)) {
> +		err = -EKEYEXPIRED;
> +		goto splice_read_end;
> +	}

This will prevent splicing peek()'ed data.
Just put the check in tls_rx_rec_wait().

  reply	other threads:[~2023-02-15  5:09 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-14 11:17 [PATCH net-next v2 0/5] tls: implement key updates for TLS1.3 Sabrina Dubroca
2023-02-14 11:17 ` [PATCH net-next v2 1/5] tls: remove tls_context argument from tls_set_sw_offload Sabrina Dubroca
2023-02-14 11:17 ` [PATCH net-next v2 2/5] tls: block decryption when a rekey is pending Sabrina Dubroca
2023-02-15  5:09   ` Jakub Kicinski [this message]
2023-02-15 17:37     ` Sabrina Dubroca
2023-02-14 11:17 ` [PATCH net-next v2 3/5] tls: implement rekey for TLS1.3 Sabrina Dubroca
2023-02-14 11:17 ` [PATCH net-next v2 4/5] selftests: tls: add key_generation argument to tls_crypto_info_init Sabrina Dubroca
2023-02-14 11:17 ` [PATCH net-next v2 5/5] selftests: tls: add rekey tests Sabrina Dubroca
2023-02-15  5:08 ` [PATCH net-next v2 0/5] tls: implement key updates for TLS1.3 Jakub Kicinski
2023-02-15 17:29   ` Sabrina Dubroca
2023-02-15 19:10     ` Jakub Kicinski
2023-02-15 23:23       ` Sabrina Dubroca
2023-02-16  3:57         ` Jakub Kicinski
2023-02-16 16:23           ` Sabrina Dubroca
2023-02-22  3:19             ` Jakub Kicinski
2023-02-23 16:27               ` Sabrina Dubroca
2023-02-23 17:29                 ` Jakub Kicinski
2023-03-13 15:41                   ` Sabrina Dubroca
2023-03-13 18:35                     ` Jakub Kicinski
2023-03-22 16:10                       ` Sabrina Dubroca
2023-03-22 19:43                         ` Jakub Kicinski

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