KVM: x86: nSVM: fix potential NULL derefernce on nested migration (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.24 % · centile 15 ()
- 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: nSVM: fix potential NULL derefernce on nested migration Turns out that due to review feedback and/or rebases I accidentally moved the call to nested_svm_load_cr3 to be too early, before the NPT is enabled, which is very wrong to do. KVM can't even access guest memory at that point as nested NPT is needed for that, and of course it won't initialize the walk_mmu, which is main issue the patch was addressing. Fix this for real.
Faiblesses (CWE)
- CWE-476 — Déréférencement de pointeur nul
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2022-53672
- GCVE · GCVE-0-2022-48793
Avis du CERT-FR
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0718 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0717 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0693 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.13 < 5.15.25cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.11
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 232f75d3b4b5456de6f0b671aa86345d62de1473 < 74b426bea4f7e3b081add2b88d4fba16d3af7ab6 ; affected 232f75d3b4b5456de6f0b671aa86345d62de1473 < 352193edda48e08e8824a7ece09aec830a603cfe ; affected 232f75d3b4b5456de6f0b671aa86345d62de1473 < e1779c2714c3023e4629825762bcbc43a3b943df |
| Linux · Linux | affected 5.13 ; unaffected 0 < 5.13 ; unaffected 5.15.25 ≤ 5.15.* ; unaffected 5.16.11 ≤ 5.16.* ; unaffected 5.17 ≤ * |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |