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 =...

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...

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....

EUVD-2026-48872

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...

EUVD-2026-48651

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: net2280: Fix double free in probe error path usbinitializegadget installs gadgetrelease as the release callback for the embedded gadget device. The struct net2280 instance is therefore released through gadgetrelease...

CVE-2026-64242

In the Linux kernel, the net2280 USB gadget driver fix eliminates a double-free in the probe error path. The gadget_init registers gadget_release() as the release callback; net2280_remove() tears down the device and drops the gadget reference with usb_put_gadget(). A subsequent kfree(dev) could f...

CVE-2026-64233

In the Linux kernel, a race was fixed in the USB gadget uvc driver. The function uvc_function_bind() previously walked opts->extension_units without holding opts->lock, both directly for the iExtension string-descriptor fixup and indirectly via uvc_copy_descriptors() across speeds. The fix ...

EUVD-2026-48642

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: uvc: hold opts-lock across XU walks in uvcfunctionbind uvcfunctionbind walks &opts-extensionunits twice without holding opts-lock: - directly, for the iExtension string-descriptor fixup loop; - indirectly, four times...

CVE-2026-63894

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion ffsepfiledmabufiocomplete calls usbepfreerequest on the completed request but leaves priv-req, the back-pointer that ffsdmabuftransfer set on submission, pointi...

CVE-2026-63895

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: copy only received bytes on short ep0 read ffsep0read allocates its control-OUT data buffer with kmalloc not kzalloc at the Length value from the Setup packet, then copies that full len to userspace regardless o...

CVE-2026-63896 usb: gadget: composite: fix integer underflow in WebUSB GET_URL handling

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix integer underflow in WebUSB GETURL handling The WebUSB GETURL handler in compositesetup narrows landingpagelength to fit the host-supplied wLength using landingpagelength = wlength -...

EUVD-2026-45668

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: copy only received bytes on short ep0 read ffsep0read allocates its control-OUT data buffer with kmalloc not kzalloc at the Length value from the Setup packet, then copies that full len to userspace regardless o...

CVE-2026-63894 usb: gadget: f_fs: serialize DMABUF cancel against request completion

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion ffsepfiledmabufiocomplete calls usbepfreerequest on the completed request but leaves priv-req, the back-pointer that ffsdmabuftransfer set on submission, pointi...

EUVD-2026-45667

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion ffsepfiledmabufiocomplete calls usbepfreerequest on the completed request but leaves priv-req, the back-pointer that ffsdmabuftransfer set on submission, pointi...

CVE-2026-63894

Summary (CVE-2026-63894): A race in Linux kernel’s FunctionFS DMABUF handling allows a freed usb_request to be dequeued via an obsolete priv->req pointer when cancelling a DMABUF attachment. The root cause is that ffs_epfile_dmabuf_io_complete() frees the request but leaves priv->req pointi...

CVE-2026-63894 usb: gadget: f_fs: serialize DMABUF cancel against request completion

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: ffs: serialize DMABUF cancel against request completion ffsepfiledmabufiocomplete calls usbepfreerequest on the completed request but leaves priv-req, the back-pointer that ffsdmabuftransfer set on submission, pointi...

PT-2026-61211

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the FunctionFS gadget driver. The ffs epfile dmabuf io complete function calls usb ep free request on a completed request but fails to clear the priv-req...

USN-8488-2 linux-raspi vulnerabilities

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. CVE-2025-54505 Several security issues were discovered in the Linux kernel. An attacker could...

USN-8488-1 linux, linux-aws, linux-gcp, linux-ibm, linux-oracle, linux-realtime vulnerabilities

It was discovered that some AMD processors did not properly clear data in the floating point divider unit during speculative execution. A local attacker could use this to expose sensitive information. CVE-2025-54505 Several security issues were discovered in the Linux kernel. An attacker could...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3: gadget: Use-after-free during failed initialization and exit of cdnsp gadget In the cdnspgadgetinit and cdnspgadgetexit functions, the gadget structure pdev-gadget was freed before its endpoints. The endpoints are...