mtd: nand: ecc-mxic: Fix use of uninitialized variable ret (Linux Linux)

CVE-2025-38277
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.19 % · centile 9 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: nand: ecc-mxic: Fix use of uninitialized variable ret If ctx->steps is zero, the loop processing ECC steps is skipped, and the variable ret remains uninitialized. It is later checked and returned, which leads to undefined behavior and may cause unpredictable results in user space or kernel crashes. This scenario can be triggered in edge cases such as misconfigured geometry, ECC engine misuse, or if ctx->steps is not validated after initialization. Initialize ret to zero before the loop to ensure correct and safe behavior regardless of the ctx->steps value. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Faiblesses (CWE)

  • CWE-908 — Utilisation d'une ressource non initialisée

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 48e6633a9fa2400b53a964358753769f291a7eb0 < 4d9d6e4be09472aa72953caca3dbefdc27846170 ; affected 48e6633a9fa2400b53a964358753769f291a7eb0 < a0d9d9b5a4634e146ae41cb25667322e5c7d74d2 ; affected 48e6633a9fa2400b53a964358753769f291a7eb0 < 7a23cc510ecaabab4f6df7e9d910d16e279b72ad ; affected 48e6633a9fa2400b53a964358753769f291a7eb0 < 49482f4a39620f6afedcd3f6aa9e0d558b6a460b ; affected 48e6633a9fa2400b53a964358753769f291a7eb0 < d95846350aac72303036a70c4cdc69ae314aa26d
Linux · Linuxaffected 5.18 ; unaffected 0 < 5.18 ; unaffected 6.1.142 ≤ 6.1.* ; unaffected 6.6.94 ≤ 6.6.* ; unaffected 6.12.34 ≤ 6.12.* ; unaffected 6.15.3 ≤ 6.15.*

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