iommu/amd: Fix clone_alias() to use the original device's devid (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 3 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- 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.
Weaknesses (CWE)
- CWE-681 — Incorrect Conversion between Numeric Types
References
- https://git.kernel.org/stable/c/880a2e6c887c8f51870c0a00dfba3c8519178b65
- https://git.kernel.org/stable/c/166a08644aa509e5d27e154d7fa774f4181df9e0
- https://git.kernel.org/stable/c/dbd76a537d8cb814e7f5b795ab21ecb7949c821d
- https://git.kernel.org/stable/c/20b3c566e2702e5d4d0545be8a97029a2eebcc0e
- https://git.kernel.org/stable/c/dae251ff11d2d2208a029f98923756831cefec46
- https://git.kernel.org/stable/c/faad224fe0f0857a04ff2eb3c90f0de57f47d0f3
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-38921
- GCVE · GCVE-0-2026-53053
CERT-FR advisories
- CERTFR-2026-AVI-1252 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1230 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1203 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1162 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1118 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1066 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0956 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0927 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0900 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0864 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.17 < 6.12.91cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.13 < 6.18.33cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.19 < 7.0.10
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 3332364e4ebc0581d133a334645a20fd13b580f1 < 880a2e6c887c8f51870c0a00dfba3c8519178b65 ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < 166a08644aa509e5d27e154d7fa774f4181df9e0 ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < dbd76a537d8cb814e7f5b795ab21ecb7949c821d ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < 20b3c566e2702e5d4d0545be8a97029a2eebcc0e ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < dae251ff11d2d2208a029f98923756831cefec46 ; affected 3332364e4ebc0581d133a334645a20fd13b580f1 < faad224fe0f0857a04ff2eb3c90f0de57f47d0f3 |
| Linux · Linux | affected 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
| 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 |