In the Linux kernel, the following vulnerability has been resolved: usb: gadget: renesas_usb3: validate endpoint index in standard request handlers The GET_STATUS and SET/CLEAR_FEATURE handlers extract the endpoint number from the host-supplied wIndex without any sort of validation. Fix this up by validating the number of endpoints actually match up with the number the device has before attempting to dereference a pointer based on this math. This is just like what was done in commit ee0d382feb44 ("usb: gadget: aspeed_udc: validate endpoint index for ast udc") for the aspeed driver.

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.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-31615 https://nvd.nist.gov/vuln/detail/CVE-2026-31615 https://lore.kernel.org/linux-cve-announce/2026042423-CVE-2026-31615-f19f@gregkh/T