nilfs2: fix OOB in nilfs_set_de_type (Linux Linux)

CVE-2024-26981
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 20 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix OOB in nilfs_set_de_type The size of the nilfs_type_by_mode array in the fs/nilfs2/dir.c file is defined as "S_IFMT >> S_SHIFT", but the nilfs_set_de_type() function, which uses this array, specifies the index to read from the array in the same way as "(mode & S_IFMT) >> S_SHIFT". static void nilfs_set_de_type(struct nilfs_dir_entry *de, struct inode *inode) { umode_t mode = inode->i_mode; de->file_type = nilfs_type_by_mode[(mode & S_IFMT)>>S_SHIFT]; // oob } However, when the index is determined this way, an out-of-bounds (OOB) error occurs by referring to an index that is 1 larger than the array size when the condition "mode & S_IFMT == S_IFMT" is satisfied. Therefore, a patch to resize the nilfs_type_by_mode array should be applied to prevent OOB errors.

Faiblesses (CWE)

  • CWE-129 — Validation incorrecte d'un indice de tableau

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 054f29e9ca05be3906544c5f2a2c7321c30a4243 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 90f43980ea6be4ad903e389be9a27a2a0018f1c8 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 7061c7efbb9e8f11ce92d6b4646405ea2b0b4de1 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < bdbe483da21f852c93b22557b146bc4d989260f0 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 897ac5306bbeb83e90c437326f7044c79a17c611 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 2382eae66b196c31893984a538908c3eb7506ff9
Linux · Linuxaffected 2.6.30 ; unaffected 0 < 2.6.30 ; unaffected 4.19.313 ≤ 4.19.* ; unaffected 5.4.275 ≤ 5.4.* ; unaffected 5.10.216 ≤ 5.10.* ; unaffected 5.15.157 ≤ 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