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virtio_vsock_alloc_linear_skb() checks that the requested size is at least big enough for the packet header (VIRTIO_VSOCK_SKB_HEADROOM). Of the three callers of virtio_vsock_alloc_linear_skb(), only vhost_vsock_alloc_skb() can potentially pass a packet smaller than the header size and, as it already has a check against the maximum packet size, extend its bounds checking to consider the minimum packet size and remove the check from virtio_vsock_alloc_linear_skb(). Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: Will Deacon <will@kernel.org> Message-Id: <20250717090116.11987-7-will@kernel.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>