CVE-2026-64475

Vulnerability overview

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 drv...

Affected product and versions

Product

Linux

Affected versions

>= 87856f9af04eaacf9848710625a4ffee1d020fa9 < 0f2a35a0c7ea7da347b814750eaa78adf3582381, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < 8d65decde9afd2bd78bcfffdc0df73b82a0b5509, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < ef4c38d30b3744e89eb5048218904bb629ea8d47, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < 9e0a3f642e607848669235f5069f35640abbfc88, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < 42d758a09d2c46c42357ecde9a5492f015bde2e5, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < 52adb2dff7ce3d8430e2bdc5988b618a430def85, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < 278a5659c391fe5afe5f9ce1bad1fd24e90144f1, >= 4aeec3984ddc853f7c65903bde472ffdef738bae < daedde7f024ecf88bc8e832ed40cf2c795f0796a, >= d62dccb417cf972c978bf3c68a7d5e846bcf953e, >= 6694b8daffac5a8661071f085608afc78f7acd08, >= 5.10.37 < 5.10.261, >= 5.11.21 < 5.12, >= 5.12.4 < 5.13, >= 5.13

Fixed versions

No verified fixed-version field is available yet

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CWE

Not available