KVM: x86: Reset IRTE to host control if *new* route isn't postable (Linux Linux)

CVE-2025-37885
HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.32 % · centile 24 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reset IRTE to host control if *new* route isn't postable Restore an IRTE back to host control (remapped or posted MSI mode) if the *new* GSI route prevents posting the IRQ directly to a vCPU, regardless of the GSI routing type. Updating the IRTE if and only if the new GSI is an MSI results in KVM leaving an IRTE posting to a vCPU. The dangling IRTE can result in interrupts being incorrectly delivered to the guest, and in the worst case scenario can result in use-after-free, e.g. if the VM is torn down, but the underlying host IRQ isn't freed.

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HLinux
CVSS 3.1HIGH 8.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected efc644048ecde54f016011fe10110addd0de348f < e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769 ; affected efc644048ecde54f016011fe10110addd0de348f < 116c7d35b8f72eac383b9fd371d7c1a8ffc2968b ; affected efc644048ecde54f016011fe10110addd0de348f < 023816bd5fa46fab94d1e7917fe131b79ed1fb41 ; affected efc644048ecde54f016011fe10110addd0de348f < 3481fd96d801715942b6f69fe251133128156f30 ; affected efc644048ecde54f016011fe10110addd0de348f < b5de7ac74f69603ad803c524b840bffd36368fc3 ; affected efc644048ecde54f016011fe10110addd0de348f < 3066ec21d1a33896125747f68638725f456308db
Linux · Linuxaffected 4.4 ; unaffected 0 < 4.4 ; unaffected 5.10.237 ≤ 5.10.* ; unaffected 5.15.181 ≤ 5.15.* ; unaffected 6.1.136 ≤ 6.1.* ; unaffected 6.6.89 ≤ 6.6.*

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