block: Fix iterating over an empty bio with bio_for_each_folio_all (Linux Linux)

CVE-2024-26632
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.24 % · centile 15 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: block: Fix iterating over an empty bio with bio_for_each_folio_all If the bio contains no data, bio_first_folio() calls page_folio() on a NULL pointer and oopses. Move the test that we've reached the end of the bio from bio_next_folio() to bio_first_folio(). [axboe: add unlikely() to error case]

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

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:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
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 640d1930bef4f87ec8d8d2b05f0f6edc1dfcf662 < c6350b5cb78e9024c49eaee6fdb914ad2903a5fe ; affected 640d1930bef4f87ec8d8d2b05f0f6edc1dfcf662 < a6bd8182137a12d22d3f2cee463271bdcb491659 ; affected 640d1930bef4f87ec8d8d2b05f0f6edc1dfcf662 < ca3ede3f5893e2d26d4dbdef1eec28a8487fafde ; affected 640d1930bef4f87ec8d8d2b05f0f6edc1dfcf662 < 7bed6f3d08b7af27b7015da8dc3acf2b9c1f21d7
Linux · Linuxaffected 5.17 ; unaffected 0 < 5.17 ; unaffected 6.1.75 ≤ 6.1.* ; unaffected 6.6.14 ≤ 6.6.* ; unaffected 6.7.2 ≤ 6.7.* ; unaffected 6.8 ≤ *

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