CVE-2026-64454

CVE-2026-64454 affects the Linux kernel USB subsystem (dwc3) where gadget disconnect could run with IRQs disabled during suspend, triggering Lockdep warnings. Root cause: dwc3_gadget_suspend() holds dwc->lock with IRQs disabled and calls dwc3_disconnect_gadget(), causing gadget_driver->disc...

CVE-2026-64454 usb: dwc3: run gadget disconnect from sleepable suspend context

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: run gadget disconnect from sleepable suspend context dwc3gadgetsuspend takes dwc-lock with IRQs disabled and then calls dwc3disconnectgadget. For async callbacks that helper only uses plain spinunlock/spinlock, so the...

CVE-2026-64454 usb: dwc3: run gadget disconnect from sleepable suspend context

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: run gadget disconnect from sleepable suspend context dwc3gadgetsuspend takes dwc-lock with IRQs disabled and then calls dwc3disconnectgadget. For async callbacks that helper only uses plain spinunlock/spinlock, so the...

CVE-2026-64347

CVE-2026-64347 affects the Linux kernel USB gadget composite driver (composite_setup() OTG handler). The root cause is a dead empty check : list_first_entry() never returns NULL on an empty list, so the if (!config) guard is ineffective. When cdev->configs is empty—triggered by a teardown race...

CVE-2026-64347

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix dead empty check in the USBDTOTG handler The OTG branch of compositesetup falls back to the first configuration when none is selected: if cdev-config config = cdev-config; else config =...

EUVD-2026-48891

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix dead empty check in the USBDTOTG handler The OTG branch of compositesetup falls back to the first configuration when none is selected: if cdev-config config = cdev-config; else config =...

CVE-2026-64347 usb: gadget: composite: fix dead empty check in the USB_DT_OTG handler

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix dead empty check in the USBDTOTG handler The OTG branch of compositesetup falls back to the first configuration when none is selected: if cdev-config config = cdev-config; else config =...

CVE-2026-64345

CVE-2026-64345 affects the Linux kernel USB gadget f_printer driver. The function printer_open() increments dev->kref even when it returns -EBUSY (device already open). Because VFS does not call ->release() for a failed open, every rejected second open permanently leaks one reference count ...

CVE-2026-64346 usb: gadget: udc: Fix use-after-free in gadget_match_driver

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: Fix use-after-free in gadgetmatchdriver The udc structure acts as the management structure for the gadget, but their lifecycles are decoupled. A race condition exists where usbdelgadget frees the udc memory e.g....

EUVD-2026-48890

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: Fix use-after-free in gadgetmatchdriver The udc structure acts as the management structure for the gadget, but their lifecycles are decoupled. A race condition exists where usbdelgadget frees the udc memory e.g....

CVE-2026-64346

CVE-2026-64346 is a Use-After-Free (UAF) in the Linux kernel's USB gadget UDC subsystem. A race condition allows usb_del_gadget() to free the udc management structure (e.g., via a mode-switch workqueue) while gadget_match_driver() concurrently accesses it through configfs, triggering a NULL point...

CVE-2026-64346 usb: gadget: udc: Fix use-after-free in gadget_match_driver

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: Fix use-after-free in gadgetmatchdriver The udc structure acts as the management structure for the gadget, but their lifecycles are decoupled. A race condition exists where usbdelgadget frees the udc memory e.g....

EUVD-2026-48889

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fprinter: take kref only for successful open printeropen returns -EBUSY when the character device is already open, but it increments dev-kref regardless of the return value. VFS does not call -release for a failed...

CVE-2026-64345

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fprinter: take kref only for successful open printeropen returns -EBUSY when the character device is already open, but it increments dev-kref regardless of the return value. VFS does not call -release for a failed...

CVE-2026-64345 usb: gadget: f_printer: take kref only for successful open

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fprinter: take kref only for successful open printeropen returns -EBUSY when the character device is already open, but it increments dev-kref regardless of the return value. VFS does not call -release for a failed...

CVE-2026-64345 usb: gadget: f_printer: take kref only for successful open

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: fprinter: take kref only for successful open printeropen returns -EBUSY when the character device is already open, but it increments dev-kref regardless of the return value. VFS does not call -release for a failed...

CVE-2026-64346

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: Fix use-after-free in gadgetmatchdriver The udc structure acts as the management structure for the gadget, but their lifecycles are decoupled. A race condition exists where usbdelgadget frees the udc memory e.g....

CVE-2026-64346

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: udc: Fix use-after-free in gadgetmatchdriver The udc structure acts as the management structure for the gadget, but their lifecycles are decoupled. A race condition exists where usbdelgadget frees the udc memory e.g....

CVE-2026-64337 usb: mtu3: unmap request DMA on queue failure

In the Linux kernel, the following vulnerability has been resolved: usb: mtu3: unmap request DMA on queue failure mtu3gadgetqueue maps the request before checking whether the QMU GPD ring can accept another transfer. the request is returned with -EAGAIN before it is linked on the endpoint request...

CVE-2026-64328 usb: gadget: f_fs: Fix DMA fence leak

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: Fix DMA fence leak In ffsdmabuftransfer, a ffsdmafence object is kmalloc'd, with the underlying dmafence later initialized by dmafenceinit, which sets its kref counter to 1. Then, dmaresvaddfence gets a second...