landlock: Fix d_parent walk (Linux Linux)

CVE-2024-40938
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.25 % · centile 16 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: landlock: Fix d_parent walk The WARN_ON_ONCE() in collect_domain_accesses() can be triggered when trying to link a root mount point. This cannot work in practice because this directory is mounted, but the VFS check is done after the call to security_path_link(). Do not use source directory's d_parent when the source directory is the mount point. [mic: Fix commit message]

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 b91c3e4ea756b12b7d992529226edce1cfd854d7 < b6e5e696435832b33e40775f060ef5c95f4fda1f ; affected b91c3e4ea756b12b7d992529226edce1cfd854d7 < cc30d05b34f9a087a6928d09b131f7b491e9ab11 ; affected b91c3e4ea756b12b7d992529226edce1cfd854d7 < c7618c7b0b8c45bcef34410cc1d1e953eb17f8f6 ; affected b91c3e4ea756b12b7d992529226edce1cfd854d7 < 88da52ccd66e65f2e63a6c35c9dff55d448ef4dc
Linux · Linuxaffected 5.19 ; unaffected 0 < 5.19 ; unaffected 6.1.95 ≤ 6.1.* ; unaffected 6.6.35 ≤ 6.6.* ; unaffected 6.9.6 ≤ 6.9.* ; unaffected 6.10 ≤ *

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