CVE-2026-86566 [MEDIUM] – A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the cop

A flaw was found in DPDK lib/vhost. A guest with runt RX descriptors can underflow the copy length in vhost enqueue, causing a denial of service in a shared vhost backend such as OVS-DPDK.