From: Herbert Xu <herbert@gondor.apana.org.au>
To: Andrew Zaborowski <andrew.zaborowski@intel.com>
Cc: Ard Biesheuvel <ardb@kernel.org>,
Paul Menzel <pmenzel@molgen.mpg.de>,
Caleb Jorden <caljorden@hotmail.com>,
Sasha Levin <sashal@kernel.org>,
iwd@lists.01.org, "# 3.4.x" <stable@vger.kernel.org>,
Greg KH <gregkh@linuxfoundation.org>,
LKML <linux-kernel@vger.kernel.org>,
"David S. Miller" <davem@davemloft.net>,
Linux Crypto Mailing List <linux-crypto@vger.kernel.org>
Subject: Re: Issue with iwd + Linux 5.8.3 + WPA Enterprise
Date: Wed, 26 Aug 2020 23:00:10 +1000 [thread overview]
Message-ID: <20200826130010.GA3232@gondor.apana.org.au> (raw)
In-Reply-To: <CAOq732JaP=4X9Yh_KjER5_ctQWoauxzXTZqyFP9KsLSxvVH8=w@mail.gmail.com>
On Wed, Aug 26, 2020 at 02:58:02PM +0200, Andrew Zaborowski wrote:
>
> Running iwd's and ell's unit tests I can see that at least the
> following algorithms give EINVAL errors:
> ecb(aes)
> cbc(aes)
> ctr(aes)
>
> The first one fails in recv() and only for some input lengths. The
> latter two fail in send(). The relevant ell code starts at
> https://git.kernel.org/pub/scm/libs/ell/ell.git/tree/ell/cipher.c#n271
>
> The tests didn't get to the point where aead is used.
Yes ell needs to set MSG_MORE after sending the control message.
Any sendmsg(2) without a MSG_MORE will be interpreted as the end
of a request.
I'll work around this in the kernel though for the case where there
is no actual data, with a WARN_ON_ONCE.
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2020-08-26 13:00 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200826055150.2753.90553@ml01.vlan13.01.org>
2020-08-26 6:18 ` Issue with iwd + Linux 5.8.3 + WPA Enterprise Paul Menzel
2020-08-26 10:40 ` Ard Biesheuvel
2020-08-26 11:49 ` Herbert Xu
2020-08-26 11:59 ` Ard Biesheuvel
2020-08-26 12:08 ` Herbert Xu
2020-08-26 12:58 ` Andrew Zaborowski
2020-08-26 13:00 ` Herbert Xu [this message]
2020-08-26 13:57 ` Denis Kenzior
2020-08-26 14:19 ` Herbert Xu
2020-08-26 15:25 ` Denis Kenzior
2020-08-26 15:42 ` Ard Biesheuvel
2020-08-26 22:19 ` Herbert Xu
2020-08-27 6:40 ` Ard Biesheuvel
2020-08-27 7:14 ` [v2 PATCH] crypto: af_alg - Work around empty control messages without MSG_MORE Herbert Xu
2020-08-27 7:40 ` Ard Biesheuvel
[not found] ` <BL0PR11MB329980406FA0A14A8EF61A07B9550@BL0PR11MB3299.namprd11.prod.outlook.com>
2020-08-27 7:54 ` Issue with iwd + Linux 5.8.3 + WPA Enterprise Ard Biesheuvel
2020-08-26 13:29 ` [PATCH] crypto: af_alg - Work around empty control messages without MSG_MORE Herbert Xu
2020-08-26 13:56 ` Ard Biesheuvel
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