From: Peter Lieven <pl@kamp.de>
To: Paolo Bonzini <pbonzini@redhat.com>, Kevin Wolf <kwolf@redhat.com>
Cc: benoit.canet@irqsave.net, maxa@catit.be, qemu-devel@nongnu.org,
stefanha@redhat.com
Subject: Re: [Qemu-devel] [Fwd: [PATCH v4 07/21] iscsi: Handle failure for potentially large allocations]
Date: Mon, 25 Aug 2014 11:56:14 +0200 [thread overview]
Message-ID: <53FB083E.5010105@kamp.de> (raw)
In-Reply-To: <53FAFA58.2090807@redhat.com>
On 25.08.2014 10:56, Paolo Bonzini wrote:
> Il 24/08/2014 21:31, Peter Lieven ha scritto:
>> Am 24.08.2014 um 18:30 schrieb Paolo Bonzini:
>>> Il 22/08/2014 10:42, Kevin Wolf ha scritto:
>>>>> Unfortunately, I missed that one. The zeroblock is typicalls 512 Byte or 4K depending
>>>>> on the blocksize.
>>>> I don't remember the details, but I think when I went through all
>>>> drivers, I couldn't convince myself that a reasonable block size is
>>>> enforced somewhere. So I just went ahead and converted the call to be on
>>>> the safe side. It can never hurt anyway.
>>> Yeah, a malicious iSCSI target could have unreasonable block sizes.
>> Maybe we should just allow 512b or 4kb blocksize and refuse
>> all other?
> At least CDs and DVDs use 2kb blocksize. :)
power of 2 && <= 4096 ?
>
> Paolo
>
prev parent reply other threads:[~2014-08-25 9:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <00c425bd67fc66567dc683205f8f60f7.squirrel@ssl.dlhnet.de>
2014-08-22 7:40 ` [Qemu-devel] [Fwd: [PATCH v4 07/21] iscsi: Handle failure for potentially large allocations] Peter Lieven
2014-08-22 8:42 ` Kevin Wolf
2014-08-22 8:59 ` Peter Lieven
2014-08-24 16:30 ` Paolo Bonzini
2014-08-24 19:31 ` Peter Lieven
2014-08-25 8:56 ` Paolo Bonzini
2014-08-25 9:56 ` Peter Lieven [this message]
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