CVE-2026-89904

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89904

Key Details

CVE	CVE-2026-89904
CVSS Score / Version	8.4 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/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 unchanged; 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:

LoongArch: Fix acpi_package_ids[] array overflow

With LoongArch virt machine, a typical setting is one core per socket,

there will max 256 sockets (packages) on one VM. With PPTT acpi table,

array acpi_package_ids[] will be overflowed.

Here change the array size of acpi_package_ids[] with the max value of

MAX_PACKAGES and KVM_MAX_VCPUS. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89904
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89904

Source

Reference

NVD

CVE