CVE-2026-46131

KVM: x86: check for nEPT/nNPT in slow flush hypercalls

En bref

Sévérité
Non disponible
EPSS
EPSS 0.13 % · centile 2 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Undergoing Analysis

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: check for nEPT/nNPT in slow flush hypercalls Checking is_guest_mode(vcpu) is incorrect, because translate_nested_gpa() is only valid if an L2 guest is running *with nested EPT/NPT enabled*. Instead use the same condition as translate_nested_gpa() itself.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected aee738236dca0d0870789138ec494e15d6303566 < 971f17f5d91045404e3914029ea57c3da90179a4 ; affected aee738236dca0d0870789138ec494e15d6303566 < 45fc766bc756ff1d66f8ca026a9c4f7f764adfae ; affected aee738236dca0d0870789138ec494e15d6303566 < d6f4e217d663ede5becc2fd6cb612c749677387b ; affected aee738236dca0d0870789138ec494e15d6303566 < 4c7f8436b19a2a3acc0cb6b6e3becd6796ae5c57 ; affected aee738236dca0d0870789138ec494e15d6303566 < 464af6fc2b1dcc74005b7f58ee3812b17777efee
Linux · Linuxaffected 6.2 ; unaffected 0 < 6.2 ; unaffected 6.6.140 ≤ 6.6.* ; unaffected 6.12.88 ≤ 6.12.* ; unaffected 6.18.30 ≤ 6.18.* ; unaffected 7.0.7 ≤ 7.0.*

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD