CVE-2026-45989
of: unittest: fix use-after-free in testdrv_probe()
HIGH 7.8
En bref
- Source
- NVD
- EPSS
- EPSS 0.16 % · centile 5 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: of: unittest: fix use-after-free in testdrv_probe() The function testdrv_probe() retrieves the device_node from the PCI device, applies an overlay, and then immediately calls of_node_put(dn). This releases the reference held by the PCI core, potentially freeing the node if the reference count drops to zero. Later, the same freed pointer 'dn' is passed to of_platform_default_populate(), leading to a use-after-free. The reference to pdev->dev.of_node is owned by the device model and should not be released by the driver. Remove the erroneous of_node_put() to prevent premature freeing.
Faiblesses (CWE)
- CWE-416 — Utilisation après libération
Références
- https://git.kernel.org/stable/c/0ba03e06f037df704d9b032e36d417633e2326bc
- https://git.kernel.org/stable/c/d68347b07b9801791c9eaab8f772770b52b8cd5c
- https://git.kernel.org/stable/c/5b6122a67a295f8a08b7c18d908a1bd974dfaec8
- https://git.kernel.org/stable/c/6b2023286d2c6ed3bf964fb92e34c9c14d42eb69
- https://git.kernel.org/stable/c/07fd339b2c253205794bea5d9b4b7548a4546c56
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2026-32285
- GCVE · GCVE-0-2026-45989
Avis du CERT-FR
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0861 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0831 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0731 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6 < 6.6.140cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.86cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.27cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.4
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 26409dd045892904b059dc411403e9c8ce7543ca < 0ba03e06f037df704d9b032e36d417633e2326bc ; affected 26409dd045892904b059dc411403e9c8ce7543ca < d68347b07b9801791c9eaab8f772770b52b8cd5c ; affected 26409dd045892904b059dc411403e9c8ce7543ca < 5b6122a67a295f8a08b7c18d908a1bd974dfaec8 ; affected 26409dd045892904b059dc411403e9c8ce7543ca < 6b2023286d2c6ed3bf964fb92e34c9c14d42eb69 ; affected 26409dd045892904b059dc411403e9c8ce7543ca < 07fd339b2c253205794bea5d9b4b7548a4546c56 |
| Linux · Linux | affected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.6.140 ≤ 6.6.* ; unaffected 6.12.86 ≤ 6.12.* ; unaffected 6.18.27 ≤ 6.18.* ; unaffected 7.0.4 ≤ 7.0.* |
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 |