CVE-2026-64453

A flaw was found in the Linux kernel's USB subsystem, specifically within the usbio module. This vulnerability, known as a use-after-free UAF, occurs when the system attempts to access memory that has already been released during the disconnection of a USB device. A local attacker or a specially...

CVE-2026-64453

CVE-2026-64453 affects the Linux kernel USB subsystem (usbio) where usbio_disconnect() could use a freed object while iterating the usbio->cli_list in reverse during client teardown, leading to slab-use-after-free (KASAN) reported in the vulnerability validation. The root cause is iterating wi...

CVE-2026-64453

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: fix disconnect UAF in client teardown usbiodisconnect walks usbio-clilist in reverse and uninitializes each auxiliary device. auxiliarydeviceuninit drops the device reference, and for an unbound child that can r...

EUVD-2026-48797

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: fix disconnect UAF in client teardown usbiodisconnect walks usbio-clilist in reverse and uninitializes each auxiliary device. auxiliarydeviceuninit drops the device reference, and for an unbound child that can r...

CVE-2026-64453 usb: misc: usbio: fix disconnect UAF in client teardown

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: fix disconnect UAF in client teardown usbiodisconnect walks usbio-clilist in reverse and uninitializes each auxiliary device. auxiliarydeviceuninit drops the device reference, and for an unbound child that can r...

EUVD-2026-48883

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: bound bulk IN response length to the received transfer usbiobulkmsg copies bpktlen = le16tocpubpkt-len bytes out of the bulk IN buffer usbio-rxbuf, allocated with size usbio-rxbuflen into the caller's buffer...

CVE-2026-64339

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: bound bulk IN response length to the received transfer usbiobulkmsg copies bpktlen = le16tocpubpkt-len bytes out of the bulk IN buffer usbio-rxbuf, allocated with size usbio-rxbuflen into the caller's buffer...

Linux Distros Unpatched Vulnerability : CVE-2026-64453

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: misc: usbio: fix disconnect UAF in client teardown usbiodisconnect walks usbio-clilist in reverse and uninitializes each auxiliary device...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: Fixed the URB memory leak that occurred during submission failures. When usbsubmiturb fails in usbioprobe, the previously allocated URB is never released, resulting in a memory leak. This issue was fixed by...

CVE-2026-31757

CVE-2026-31757 affects the Linux kernel USB subsystem (usbio). The issue is a memory leak where, if usb_submit_urb() fails during device probing (usbio_probe()), the previously allocated URB is not freed. The fix directs control flow to an error path (err_free_urb) to properly release the URB and...

CVE-2026-31757 usb: misc: usbio: Fix URB memory leak on submit failure

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: Fix URB memory leak on submit failure When usbsubmiturb fails in usbioprobe, the previously allocated URB is never freed, causing a memory leak. Fix this by jumping to errfreeurb label to properly release the UR...

CVE-2026-31757 usb: misc: usbio: Fix URB memory leak on submit failure

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: Fix URB memory leak on submit failure When usbsubmiturb fails in usbioprobe, the previously allocated URB is never freed, causing a memory leak. Fix this by jumping to errfreeurb label to properly release the UR...