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From: Jakub Kicinski <kuba@kernel.org>
To: Sabrina Dubroca <sd@queasysnail.net>
Cc: netdev@vger.kernel.org, Dave Watson <davejwatson@fb.com>,
	Vakul Garg <vakul.garg@nxp.com>,
	Boris Pismenny <borisp@nvidia.com>,
	John Fastabend <john.fastabend@gmail.com>
Subject: Re: [PATCH net 2/5] tls: fix use-after-free with partial reads and async decrypt
Date: Wed, 6 Sep 2023 19:05:29 -0700	[thread overview]
Message-ID: <20230906190529.6cec0a3d@kernel.org> (raw)
In-Reply-To: <aa1a31a25c2d0121e039f34ee58a996ea9a130ad.1694018970.git.sd@queasysnail.net>

On Wed,  6 Sep 2023 19:08:32 +0200 Sabrina Dubroca wrote:
> @@ -221,7 +222,8 @@ static void tls_decrypt_done(void *data, int err)
> 	/* Free the destination pages if skb was not decrypted inplace */
> 	if (sgout != sgin) {

This check is always true now, right?
Should we replace it with dctx->put_outsg?

> 		/* Skip the first S/G entry as it points to AAD */
>  		for_each_sg(sg_next(sgout), sg, UINT_MAX, pages) {
>  			if (!sg)
>  				break;
> -			put_page(sg_page(sg));
> +			if (dctx->put_outsg)
> +				put_page(sg_page(sg));
>  		}
>  	}
-- 
pw-bot: cr

  reply	other threads:[~2023-09-07  2:05 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-06 17:08 [PATCH net 0/5] tls: fix some issues with async encryption Sabrina Dubroca
2023-09-06 17:08 ` [PATCH net 1/5] net: tls: handle -EBUSY on async encrypt/decrypt requests Sabrina Dubroca
2023-09-07  1:50   ` Jakub Kicinski
2023-09-07 15:11   ` Simon Horman
2023-09-08  6:10   ` Herbert Xu
2023-09-08 15:55     ` Sabrina Dubroca
2023-09-08 21:26       ` Jakub Kicinski
2023-09-09  0:53         ` Herbert Xu
2023-09-12  4:43       ` Herbert Xu
2023-09-12 15:37         ` Sabrina Dubroca
2023-09-14  9:00           ` Herbert Xu
2023-09-06 17:08 ` [PATCH net 2/5] tls: fix use-after-free with partial reads and async decrypt Sabrina Dubroca
2023-09-07  2:05   ` Jakub Kicinski [this message]
2023-09-07 13:56     ` Sabrina Dubroca
2023-09-06 17:08 ` [PATCH net 3/5] tls: fix returned read length with async !zc decrypt Sabrina Dubroca
2023-09-06 17:08 ` [PATCH net 4/5] tls: fix race condition in async decryption of corrupted records Sabrina Dubroca
2023-09-06 17:08 ` [PATCH net 5/5] tls: don't decrypt the next record if it's of a different type Sabrina Dubroca
2023-09-07  3:47   ` Jakub Kicinski
2023-09-07 12:21     ` Sabrina Dubroca
2023-09-07 17:08       ` Jakub Kicinski
2023-09-08  6:06       ` Herbert Xu
2023-09-08 15:38         ` Sabrina Dubroca
2023-09-12  4:38           ` Herbert Xu
2023-09-13 13:25             ` Sabrina Dubroca
2023-09-14  9:45               ` Herbert Xu

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