From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH 1/1] Defer skb allocation for both mergeable buffers and
 big packets in virtio_net
Date: Fri, 20 Nov 2009 07:19:53 +0100
Message-ID: <4B063509.10006@gmail.com>
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Cc: "Michael S. Tsirkin" <mst@redhat.com>, Avi Kivity <avi@redhat.com>,
	Rusty Russell <rusty@rustcorp.com.au>, netdev@vger.kernel.org,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org
To: Shirley Ma <mashirle@us.ibm.com>
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Shirley Ma a =E9crit :
> This patch is generated against 2.6 git tree. I didn't break up this
> patch since it has one functionality. Please review it.
>=20
> Thanks
> Shirley
>=20
> Signed-off-by: Shirley Ma <xma@us.ibm.com>
> ------
> =20
> +void virtio_free_pages(void *buf)
> +{
> +	struct page *page =3D (struct page *)buf;
> +
> +	while (page) {
> +		__free_pages(page, 0);
> +		page =3D (struct page *)page->private;
> +	}
> +}
> +

Interesting use after free :)