s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs (Linux Linux)

CVE-2025-37946
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.19 % · centile 9 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs With commit bcb5d6c76903 ("s390/pci: introduce lock to synchronize state of zpci_dev's") the code to ignore power off of a PF that has child VFs was changed from a direct return to a goto to the unlock and pci_dev_put() section. The change however left the existing pci_dev_put() untouched resulting in a doubple put. This can subsequently cause a use after free if the struct pci_dev is released in an unexpected state. Fix this by removing the extra pci_dev_put().

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
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 bcb5d6c769039c8358a2359e7c3ea5d97ce93108 < c488f8b53e156d6dcc0514ef0afa3a33376b8f9e ; affected bcb5d6c769039c8358a2359e7c3ea5d97ce93108 < 957529baef142d95e0d1b1bea786675bd47dbe53 ; affected bcb5d6c769039c8358a2359e7c3ea5d97ce93108 < 05a2538f2b48500cf4e8a0a0ce76623cc5bafcf1
Linux · Linuxaffected 6.9 ; unaffected 0 < 6.9 ; unaffected 6.12.29 ≤ 6.12.* ; unaffected 6.14.7 ≤ 6.14.* ; unaffected 6.15 ≤ *

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