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CVE-2026-89914

Last refreshed2026-10-19

Status: UPDATED  |  Advisory ID: CVE-2026-89914

Key Details

CVECVE-2026-89914
CVSS Score / Version
9.3 (Critical) / CVSS v3.1
Updated2026-10-19
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

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

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

KVM: arm64: Sign-extend VA for range-based TLBI invalidation

When the decode_range_tlbi() helper was moved to be used for S1 TLBIs,

the required sign extension was omitted. Add it.

As a result, special care must be taken to not overflow PA bits when

this is used for S2 invalidation. (NVD)

What to Do

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

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-89914
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-89914

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