From: "Daniel P. Berrange" <berrange@redhat.com>
To: Gerd Hoffmann <kraxel@redhat.com>
Cc: qemu-devel@nongnu.org, Huawei PSIRT <PSIRT@huawei.com>,
P J P <ppandit@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] input: limit kbd queue depth
Date: Fri, 28 Apr 2017 09:49:06 +0100 [thread overview]
Message-ID: <20170428084906.GB23819@redhat.com> (raw)
In-Reply-To: <20170428084237.23960-1-kraxel@redhat.com>
On Fri, Apr 28, 2017 at 10:42:37AM +0200, Gerd Hoffmann wrote:
> Apply a limit to the number of items we accept into the keyboard queue.
Is there a need for similar protection fir mouse input events from VNC ?
> Impact: Without this limit vnc clients can exhaust host memory by
> sending keyboard events faster than qemu feeds them to the guest.
Ability for a remote network client to crash a host by exhausting
memory should be considered a security flaw & have a CVE allocated
for it.
Regards,
Daniel
--
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next prev parent reply other threads:[~2017-04-28 8:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 8:42 [Qemu-devel] [PATCH] input: limit kbd queue depth Gerd Hoffmann
2017-04-28 8:49 ` Daniel P. Berrange [this message]
2017-04-28 9:05 ` Gerd Hoffmann
2017-04-28 9:09 ` P J P
2017-04-28 12:27 ` Markus Armbruster
2017-05-02 7:12 ` Gerd Hoffmann
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