vhost: Take a reference on the task in struct vhost_task. (Linux Linux)

CVE-2025-40024
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.15 % · centile 4 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Deferred

Description

In the Linux kernel, the following vulnerability has been resolved: vhost: Take a reference on the task in struct vhost_task. vhost_task_create() creates a task and keeps a reference to its task_struct. That task may exit early via a signal and its task_struct will be released. A pending vhost_task_wake() will then attempt to wake the task and access a task_struct which is no longer there. Acquire a reference on the task_struct while creating the thread and release the reference while the struct vhost_task itself is removed. If the task exits early due to a signal, then the vhost_task_wake() will still access a valid task_struct. The wake is safe and will be skipped in this case.

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

Produits affectés

ProduitVersions
Linux · Linuxaffected f9010dbdce911ee1f1af1398a24b1f9f992e0080 < 82a1463c968b1a6ae598a4f2fcef17b71bb7d3a0 ; affected f9010dbdce911ee1f1af1398a24b1f9f992e0080 < d2be773a92874a070215b51b730cb2b1eaa8fae2 ; affected f9010dbdce911ee1f1af1398a24b1f9f992e0080 < 7ce635b3d3aba43296b62b5a2d97c008bc51cbd2 ; affected f9010dbdce911ee1f1af1398a24b1f9f992e0080 < afe16653e05db07d658b55245c7a2e0603f136c0
Linux · Linuxaffected 6.4 ; unaffected 0 < 6.4 ; unaffected 6.6.109 ≤ 6.6.* ; unaffected 6.12.50 ≤ 6.12.* ; unaffected 6.16.10 ≤ 6.16.* ; unaffected 6.17 ≤ *

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