CVE-2026-80684

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-80684

Key Details

CVE	CVE-2026-80684
CVSS Score / Version	9.3 (Critical) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; 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:

KVM: s390: pci: Fix NULL dereference on AIBV allocation failure

The airq_iv_create() can return NULL on failure, but the return value was

never checked. If it fails, zdev->aibv will be NULL and fail when

dereferenced in kvm_zpci_set_airq(). Add a NULL check and free the

previously allocated AISB bit and zdev->aisb on failure. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-80684
CVE	https://www.cve.org/CVERecord?id=CVE-2026-80684

Source

Reference

NVD

CVE