CVE-2026-64475

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-64475

Key Details

CVE	CVE-2026-64475
CVSS Score / Version	8.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is changed; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

vfio/pci: Release the VGA arbiter client on register_device() failure

The re-order in the Fixes commit below displaced vfio_pci_vga_init() as

the last failure point of what is now vfio_pci_core_register_device()

without introducing an unwind for the VGA arbiter registration.

In current kernels this is mostly benign because vfio_pci_set_decode()

only uses pci_dev state, but the original failure path could leave a

callback with a freed vdev cookie. The stale registration also becomes

unsafe again once the callback follows drvdata to the vfio device.

Add the required VGA unwind callout. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-64475
CVE	https://www.cve.org/CVERecord?id=CVE-2026-64475

Source

Reference

NVD

CVE