From: Cornelia Huck <cohuck@redhat.com>
To: P J P <ppandit@redhat.com>
Cc: Qemu Developers <qemu-devel@nongnu.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
zhangboxian <zhangboxian@huawei.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Prasad J Pandit <pjp@fedoraproject.org>
Subject: Re: [Qemu-devel] [PATCH v4 1/2] virtio: check VirtQueue Vring object is set
Date: Thu, 30 Nov 2017 10:32:15 +0100 [thread overview]
Message-ID: <20171130103215.223c2145.cohuck@redhat.com> (raw)
In-Reply-To: <20171129174428.27548-2-ppandit@redhat.com>
On Wed, 29 Nov 2017 23:14:27 +0530
P J P <ppandit@redhat.com> wrote:
> From: Prasad J Pandit <pjp@fedoraproject.org>
>
> A guest could attempt to use an uninitialised VirtQueue object
> or unset Vring.align leading to a arithmetic exception. Add check
> to avoid it.
>
> Reported-by: Zhangboxian <zhangboxian@huawei.com>
> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
> ---
> hw/virtio/virtio.c | 14 +++++++++++---
> 1 file changed, 11 insertions(+), 3 deletions(-)
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
next prev parent reply other threads:[~2017-11-30 9:32 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-29 17:44 [Qemu-devel] [PATCH v4 0/2] check VirtiQueue Vring objects P J P
2017-11-29 17:44 ` [Qemu-devel] [PATCH v4 1/2] virtio: check VirtQueue Vring object is set P J P
2017-11-30 9:32 ` Cornelia Huck [this message]
2017-11-29 17:44 ` [Qemu-devel] [PATCH v4 2/2] tests: add test to check VirtQueue object P J P
2017-11-30 14:53 ` [Qemu-devel] [PATCH v4 0/2] check VirtiQueue Vring objects Stefan Hajnoczi
2017-11-30 14:54 ` Stefan Hajnoczi
2017-11-30 18:11 ` P J P
2017-12-07 7:07 ` P J P
2017-12-07 17:53 ` Michael S. Tsirkin
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