Uncontrolled Resource Consumption
A flaw was found in dpdk versions 19.11-rc1 through v22.03-rc3. This flaw allows a malicious vhost-user master to attach an unexpected number of fds as ancillary data to "VHOST_USER_GET_INFLIGHT_FD / VHOST_USER_SET_INFLIGHT_FD" messages that are not closed by the vhost-user slave. By sending such messages continuously, the vhost-user master exhausts available fd in the vhost-user slave process, leading to a denial of service.
CWE-400 - Uncontrolled resource consumption
An uncontrolled resource allocation attack (also known as resource exhaustion attack) triggers unauthorized overconsumption of the limited resources in an application, such as memory, file system storage, database connection pool entries, and CPU. This may lead to denial of service for valid users and degradation of the application's functionality as well as that of the host operating system.