of: reserved_mem: prevent OOB when too many dynamic regions are defined (Linux Linux)

CVE-2026-80723
HIGH 8.4

En bref

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

Description

In the Linux kernel, the following vulnerability has been resolved: of: reserved_mem: prevent OOB when too many dynamic regions are defined On boot, fdt_scan_reserved_mem() saves each dynamically-placed /reserved-memory subnode into a local array of size MAX_RESERVED_REGIONS. If the device tree defines more than MAX_RESERVED_REGIONS dynamically-placed regions, fdt_scan_reserved_mem() writes past the end of the local array. Add a bounds check that logs an error and skips the excess regions, restoring the original behavior.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 9a0fe62f93ede02c27aaca81112af1e59c8c0979 < 68d27250c9e81ab7764603e346c2b1017cb53adf ; affected 8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 < cfa7e2734877330d6c10e0f33953905486c4530c ; affected 8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 < de8ccbd6bf4efe7a059e2c483789936009e10f42 ; affected 8a6e02d0c00e7b62e6acb74146878bb91e9e7e31 < db3dbdfea1b8f38774419c5c2c14e4b81c48708d ; affected 6.12.13 < 6.12.103
Linux · Linuxaffected 6.13 ; unaffected 0 < 6.13 ; unaffected 6.12.103 ≤ 6.12.* ; unaffected 6.18.44 ≤ 6.18.* ; unaffected 7.1.8 ≤ 7.1.* ; unaffected 7.2 ≤ *

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