smb: client: clear ce->tgthint in free_tgts() (Linux Linux)

CVE-2026-89636
CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.66 % · centile 52 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: clear ce->tgthint in free_tgts() When free_tgts() frees all structures in ce->tlist, ce->tgthint is left pointing to one of the freed cache_dfs_tgt structures. If ce->tgthint is not reset before it is used later, it results in a use-after-free. Set ce->tgthint to NULL in free_tgts() after the elements are freed to reflect that no elements remain.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Produits affectés

ProduitVersions
Linux · Linuxaffected 54be1f6c1c37498bba557049df646cc239fa37e3 < 14f60e959b5ac813715ff72e127beb3584ddabf6 ; affected 54be1f6c1c37498bba557049df646cc239fa37e3 < 3ff9462bb7a06d8d32a1dc02d39580b078ec9e55 ; affected 54be1f6c1c37498bba557049df646cc239fa37e3 < 7507bd1885643d0461a6017767492450af1ce2a3 ; affected 54be1f6c1c37498bba557049df646cc239fa37e3 < 9ab46a13798a61d9d020b01d4e57efdabe6624fa ; affected 54be1f6c1c37498bba557049df646cc239fa37e3 < 5baab40404a9393bcc0b7b8f1950bf2c307e0984 ; affected 54be1f6c1c37498bba557049df646cc239fa37e3 < b1b741cf8e7ce1b91d937e23decd3d3358748700
Linux · Linuxaffected 5.0 ; unaffected 0 < 5.0 ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 6.6.* ; unaffected 6.12.109 ≤ 6.12.* ; unaffected 6.18.50 ≤ 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