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From: Christian Engelmayer <cengelma@gmx.at>
To: Marek Vasut <marex@denx.de>
Cc: tim.c.chen@linux.intel.com, herbert@gondor.apana.org.au,
	davem@davemloft.net, linux-crypto@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] crypto: Fix potential leak in test_aead_speed() if aad_size is too big
Date: Wed, 23 Apr 2014 19:43:35 +0200	[thread overview]
Message-ID: <20140423194335.2d72d7a4@spike> (raw)
In-Reply-To: <201404230133.05256.marex@denx.de>

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On Wed, 23 Apr 2014 01:33:05 +0200, Marek Vasut <marex@denx.de> wrote:
> On Monday, April 21, 2014 at 08:45:59 PM, Christian Engelmayer wrote:
> > +	if (aad_size >= PAGE_SIZE) {
> 
> On an unrelated note ... Won't if (aad_size > PAGE_SIZE) be sufficient here?

From what I have seen how the buffers are allocated via __get_free_page() I
thought so too. However, as it previously read

	if (aad_size < PAGE_SIZE)
		memset(assoc, 0xff, aad_size);
	else {

my intention was simply to make the modification so that the bug is addressed
without introducing an additional change.

Regards,
Christian

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  reply	other threads:[~2014-04-23 17:43 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-04-21 18:44 [PATCH 0/3] Cleanup ressource leaks in test_aead_speed() Christian Engelmayer
2014-04-21 18:45 ` [PATCH 1/3] crypto: Fix potential leak in test_aead_speed() if aad_size is too big Christian Engelmayer
2014-04-22 23:33   ` Marek Vasut
2014-04-23 17:43     ` Christian Engelmayer [this message]
2014-04-23 17:44       ` Marek Vasut
2014-04-23 17:20   ` Tim Chen
2014-04-21 18:46 ` [PATCH 2/3] crypto: Fix potential leak in test_aead_speed() if crypto_alloc_aead() fails Christian Engelmayer
2014-04-22 23:35   ` Marek Vasut
2014-04-23 17:20   ` Tim Chen
2014-04-21 18:47 ` [PATCH 3/3] crypto: Fix leak of struct aead_request in test_aead_speed() Christian Engelmayer
2014-04-22 23:36   ` Marek Vasut
2014-04-23 17:26   ` Tim Chen
2014-04-28 10:25 ` [PATCH 0/3] Cleanup ressource leaks " Herbert Xu

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