CVE-2026-80549

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-80549

Key Details

CVE	CVE-2026-80549
CVSS Score / Version	8.2 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is high; 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:

s390/vfio_ccw: Move cp cleanup out of not operational

The fsm_notoper() routine is called when the device has been

lost, and is (by definition) no longer operational. Since this

can happen asynchronously from the normal behavior of the

driver, the cleanup may happen when holding other locks

in the calling sequence (notably, the cio subchannel lock).

Push the cleanup of the private->cp resources to a workqueue,

where it can be done out from under that lock sequence and

a future patch can safely manage the locking requirements. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-80549
CVE	https://www.cve.org/CVERecord?id=CVE-2026-80549

Source

Reference

NVD

CVE