CVE-2026-43366

io_uring/kbuf: check if target buffer list is still legacy on recycle

HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 2 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: io_uring/kbuf: check if target buffer list is still legacy on recycle There's a gap between when the buffer was grabbed and when it potentially gets recycled, where if the list is empty, someone could've upgraded it to a ring provided type. This can happen if the request is forced via io-wq. The legacy recycling is missing checking if the buffer_list still exists, and if it's of the correct type. Add those checks.

Faiblesses (CWE)

  • CWE-362 — Situation de compétition

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)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a < a7b33671e418fca507feebd1d56e7f4952a4b25c ; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a < 439a6728ec4641ffad1ca796622c19bc525e570f ; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a < f3fb54e7a8b4aadcc2836ee463eec8c88709b8aa ; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a < 50ad880db3013c6fee0ef13781762a39e2e7ef83 ; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a < 97b57f69fee1b61b41acbf37e7720cac9d389fa4 ; affected c7fb19428d67dd0a2a78a4f237af01d39c78dc5a < c2c185be5c85d37215397c8e8781abf0a69bec1f
Linux · Linuxaffected 5.19 ; unaffected 0 < 5.19 ; unaffected 6.1.167 ≤ 6.1.* ; unaffected 6.6.130 ≤ 6.6.* ; unaffected 6.12.78 ≤ 6.12.* ; unaffected 6.18.19 ≤ 6.18.*

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