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From: "Stephan Müller" <smueller@chronox.de>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-crypto@vger.kernel.org
Subject: Re: [PATCH 1/2] crypto: skcipher - noop for enc/dec with NULL data
Date: Sat, 07 Oct 2017 04:49:10 +0200	[thread overview]
Message-ID: <3683903.fccHZfxTmM@positron.chronox.de> (raw)
In-Reply-To: <20171007024635.GB28489@gondor.apana.org.au>

Am Samstag, 7. Oktober 2017, 04:46:35 CEST schrieb Herbert Xu:

Hi Herbert,

> Hmm this just papers over bugs in the underlying code.  Which
> algorithm is causing the crash with a zero input? They're supposed
> to handle this case.

The bug happens with authenc. It is surely possible to modify authenc. Yet I 
thought that covering such issue at a central spot at least prevents similar 
buts to be exploitable from userspace.

Ciao
Stephan

  reply	other threads:[~2017-10-07  2:49 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-24  6:22 [PATCH 0/2] fix authenc() kernel crash Stephan Müller
2017-09-24  6:24 ` [PATCH 1/2] crypto: skcipher - noop for enc/dec with NULL data Stephan Müller
2017-10-07  2:46   ` Herbert Xu
2017-10-07  2:49     ` Stephan Müller [this message]
2017-10-07  2:51       ` Herbert Xu
2017-10-07  2:53         ` Stephan Müller
2017-10-07  3:07           ` Herbert Xu
2017-10-07  3:21             ` Stephan Müller
2017-10-07  3:29               ` Herbert Xu
2017-10-07 12:56                 ` Stephan Müller
2017-10-09 14:19                   ` Herbert Xu
2017-10-09 15:13                     ` Stephan Müller
2017-10-09 15:30                       ` [PATCH v2] crypto: shash - Fix zero-length shash ahash digest crash Herbert Xu
2017-10-09 15:52                         ` Stephan Müller
2017-09-24  6:25 ` [PATCH 2/2] crypto: shash - no kmap of zero SG Stephan Müller
2017-10-07  2:44   ` Herbert Xu
2017-09-24  6:28 ` [PATCH 0/2] fix authenc() kernel crash Stephan Müller

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