CVE-2026-31615

A flaw was found in the Linux kernel's renesas_usb3 and aspeed_udc drivers. These drivers did not properly validate endpoint index numbers provided by a host during standard USB requests, such as GET_STATUS and SET/CLEAR_FEATURE. This oversight could allow an attacker to provide a crafted endpoint number, potentially leading to an out-of-bounds pointer dereference. Such an issue may result in a denial of service or other unpredictable system behavior.