fuse: re-lock request before returning from fuse_ref_folio() (Linux Linux)

CVE-2026-64266
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: fuse: re-lock request before returning from fuse_ref_folio() fuse_ref_folio() unlocks the request but does not re-lock it before returning. fuse_chan_abort() can end the request and the async end callback (eg fuse_writepage_free()) can free the args while the subsequent copy chain logic after fuse_ref_folio() accesses them, leading to use-after-free issues. Fix this by locking the request in fuse_ref_folio() before returning.

Faiblesses (CWE)

  • CWE-362 — Situation de compétition
  • CWE-416 — Utilisation après libération

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 c3021629a0d820247ee12b6c5192a1d5380e21c6 < 1f9156714592356b4fda57beac7eab9c2a462dd3 ; affected c3021629a0d820247ee12b6c5192a1d5380e21c6 < 5630da218a45ba80f0aba0846cbe8aa655da122b ; affected c3021629a0d820247ee12b6c5192a1d5380e21c6 < 1ca605cfa59377f0143fb35b5b01360f37d1b7c4 ; affected c3021629a0d820247ee12b6c5192a1d5380e21c6 < 0e4a5a000123d81234e27a2f8187688cf608f755 ; affected c3021629a0d820247ee12b6c5192a1d5380e21c6 < e6aa539720c3d8def69683ed0c07cf9faea4e8be ; affected c3021629a0d820247ee12b6c5192a1d5380e21c6 < be353caffa8640f5e25fb3714ce8b0cef5e410e5
Linux · Linuxaffected 2.6.35 ; unaffected 0 < 2.6.35 ; unaffected 5.10.261 ≤ 5.10.* ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.*

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