CVE-2026-64337

A flaw was found in the Linux kernel's USB mtu3 gadget driver. When the mtu3_gadget_queue() function encounters a failure during the preparation of a USB transfer, the associated Direct Memory Access (DMA) mapping is not properly released. This leaves the DMA mapping active, which can lead to a resource leak. Repeated exploitation of this flaw could allow a local attacker to cause a denial of service by exhausting system resources.