net: dsa: mv88e6xxx: Correct check for empty list (Linux Linux)

CVE-2024-42224
HIGH 7.0

En bref

Source
NVD
EPSS
EPSS 0.24 % · centile 14 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mv88e6xxx: Correct check for empty list Since commit a3c53be55c95 ("net: dsa: mv88e6xxx: Support multiple MDIO busses") mv88e6xxx_default_mdio_bus() has checked that the return value of list_first_entry() is non-NULL. This appears to be intended to guard against the list chip->mdios being empty. However, it is not the correct check as the implementation of list_first_entry is not designed to return NULL for empty lists. Instead, use list_first_entry_or_null() which does return NULL if the list is empty. Flagged by Smatch. Compile tested only.

Faiblesses (CWE)

  • CWE-754 — Vérification incorrecte de conditions inhabituelles ou exceptionnelles

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected a3c53be55c955b7150cda17874c3fcb4eeb97a89 < 47d28dde172696031c880c5778633cdca30394ee ; affected a3c53be55c955b7150cda17874c3fcb4eeb97a89 < 3bf8d70e1455f87856640c3433b3660a31001618 ; affected a3c53be55c955b7150cda17874c3fcb4eeb97a89 < 2a2fe25a103cef73cde356e6d09da10f607e93f5 ; affected a3c53be55c955b7150cda17874c3fcb4eeb97a89 < 8c2c3cca816d074c75a2801d1ca0dea7b0148114 ; affected a3c53be55c955b7150cda17874c3fcb4eeb97a89 < aa03f591ef31ba603a4a99d05d25a0f21ab1cd89 ; affected a3c53be55c955b7150cda17874c3fcb4eeb97a89 < 3f25b5f1635449036692a44b771f39f772190c1d
Linux · Linuxaffected 4.11 ; unaffected 0 < 4.11 ; unaffected 4.19.318 ≤ 4.19.* ; unaffected 5.4.280 ≤ 5.4.* ; unaffected 5.10.222 ≤ 5.10.* ; unaffected 5.15.163 ≤ 5.15.*

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