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From: Jiri Pirko <jiri@resnulli.us>
To: P J P <ppandit@redhat.com>
Cc: Qemu Developers <qemu-devel@nongnu.org>,
	Jason Wang <jasowang@redhat.com>, Huawei PSIRT <psirt@huawei.com>,
	Prasad J Pandit <pjp@fedoraproject.org>
Subject: Re: [Qemu-devel] [PATCH] net: rocker: set limit to DMA buffer size
Date: Wed, 12 Oct 2016 11:52:59 +0200	[thread overview]
Message-ID: <20161012095259.GA1847@nanopsycho> (raw)
In-Reply-To: <1476263455-24839-1-git-send-email-ppandit@redhat.com>

Wed, Oct 12, 2016 at 11:10:55AM CEST, ppandit@redhat.com wrote:
>From: Prasad J Pandit <pjp@fedoraproject.org>
>
>Rocker network switch emulator has test registers to help debug
>DMA operations. While testing host DMA access, a buffer address
>is written to register 'TEST_DMA_ADDR' and its size is written to
>register 'TEST_DMA_SIZE'. When performing TEST_DMA_CTRL_INVERT
>test, if DMA buffer size was greater than 'INT_MAX', it leads to
>an invalid buffer access. Limit the DMA buffer size to avoid it.
>
>Reported-by: Huawei PSIRT <psirt@huawei.com>
>Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>

Reviewed-by: Jiri Pirko <jiri@mellanox.com>

  reply	other threads:[~2016-10-12  9:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-10-12  9:10 [Qemu-devel] [PATCH] net: rocker: set limit to DMA buffer size P J P
2016-10-12  9:52 ` Jiri Pirko [this message]
2016-10-21  1:33   ` Jason Wang

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