iommu/amd: Fix clone_alias() to use the original device's devid (Linux Linux)

CVE-2026-53053
HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: iommu/amd: Fix clone_alias() to use the original device's devid Currently clone_alias() assumes first argument (pdev) is always the original device pointer. This function is called by pci_for_each_dma_alias() which based on topology decides to send original or alias device details in first argument. This meant that the source devid used to look up and copy the DTE may be incorrect, leading to wrong or stale DTE entries being propagated to alias device. Fix this by passing the original pdev as the opaque data argument to both the direct clone_alias() call and pci_for_each_dma_alias(). Inside clone_alias(), retrieve the original device from data and compute devid from it.

Faiblesses (CWE)

  • CWE-681 — Incorrect Conversion between Numeric Types

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)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 3332364e4ebc0581d133a334645a20fd13b580f1 < 880a2e6c887c8f51870c0a00dfba3c8519178b65 ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < 166a08644aa509e5d27e154d7fa774f4181df9e0 ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < dbd76a537d8cb814e7f5b795ab21ecb7949c821d ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < 20b3c566e2702e5d4d0545be8a97029a2eebcc0e ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < dae251ff11d2d2208a029f98923756831cefec46 ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < faad224fe0f0857a04ff2eb3c90f0de57f47d0f3
Linux · Linuxaffected 5.5 ; unaffected 0 < 5.5 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.91 ≤ 6.12.* ; unaffected 6.18.33 ≤ 6.18.*

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