ACPICA: Avoid walking the Namespace if start_node is NULL (Linux Linux)

CVE-2025-71118
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 7 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ACPICA: Avoid walking the Namespace if start_node is NULL Although commit 0c9992315e73 ("ACPICA: Avoid walking the ACPI Namespace if it is not there") fixed the situation when both start_node and acpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed on Honor Magicbook 14 Pro [1]. That happens due to the access to the member of parent_node in acpi_ns_get_next_node(). The NULL pointer dereference will always happen, no matter whether or not the start_node is equal to ACPI_ROOT_OBJECT, so move the check of start_node being NULL out of the if block. Unfortunately, all the attempts to contact Honor have failed, they refused to provide any technical support for Linux. The bad DSDT table's dump could be found on GitHub [2]. DMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025 [ rjw: Subject adjustment, changelog edits ]

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b84edef48cc8afb41150949a87dcfa81bc95b53e ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ecb296286c8787895625bd4c53e9478db4ae139c ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7f9b951ed11842373851dd3c91860778356d62d3 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1bc34293dfbd266c29875206849b4f8e8177e6df ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0d8bb08126920fd4b12dbf32d9250757c9064b36 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f91dad0a3b381244183ffbea4cec5a7a69d6f41e
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.10.248 ≤ 5.10.* ; unaffected 5.15.198 ≤ 5.15.* ; unaffected 6.1.160 ≤ 6.1.* ; unaffected 6.6.120 ≤ 6.6.*

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