nilfs2: propagate directory read errors from nilfs_find_entry() (Linux Linux)

CVE-2024-50202
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.23 % · 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: nilfs2: propagate directory read errors from nilfs_find_entry() Syzbot reported that a task hang occurs in vcs_open() during a fuzzing test for nilfs2. The root cause of this problem is that in nilfs_find_entry(), which searches for directory entries, ignores errors when loading a directory page/folio via nilfs_get_folio() fails. If the filesystem images is corrupted, and the i_size of the directory inode is large, and the directory page/folio is successfully read but fails the sanity check, for example when it is zero-filled, nilfs_check_folio() may continue to spit out error messages in bursts. Fix this issue by propagating the error to the callers when loading a page/folio fails in nilfs_find_entry(). The current interface of nilfs_find_entry() and its callers is outdated and cannot propagate error codes such as -EIO and -ENOMEM returned via nilfs_find_entry(), so fix it together.

Faiblesses (CWE)

  • CWE-755 — Gestion incorrecte des conditions exceptionnelles

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:HCISA-ADP
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)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 2ba466d74ed74f073257f86e61519cb8f8f46184 < bb857ae1efd3138c653239ed1e7aef14e1242c81 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < b4b3dc9e7e604be98a222e9f941f5e93798ca475 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < c1d0476885d708a932980b0f28cd90d9bd71db39 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < edf8146057264191d5bfe5b91773f13d936dadd3 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 270a6f9df35fa2aea01ec23770dc9b3fc9a12989 ; affected 2ba466d74ed74f073257f86e61519cb8f8f46184 < 9698088ac7704e260f492d9c254e29ed7dd8729a
Linux · Linuxaffected 2.6.30 ; unaffected 0 < 2.6.30 ; unaffected 4.19.323 ≤ 4.19.* ; unaffected 5.4.285 ≤ 5.4.* ; unaffected 5.10.228 ≤ 5.10.* ; unaffected 5.15.169 ≤ 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