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Michael S. Tsirkin authored
iovec addresses coming from vhost are assumed to be pre-validated, but in fact can be speculated to a value out of range. Userspace address are later validated with array_index_nospec so we can be sure kernel info does not leak through these addresses, but vhost must also not leak userspace info outside the allowed memory table to guests. Following the defence in depth principle, make sure the address is not validated out of node range. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Cc: stable@vger.kernel.org Acked-by:
Jason Wang <jasowang@redhat.com> Tested-by:
Jason Wang <jasowang@redhat.com>
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