ipv6: prevent possible UaF in addrconf_permanent_addr() (Linux Linux)

CVE-2026-43339
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.16 % · centile 5 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UaF in addrconf_permanent_addr() The mentioned helper try to warn the user about an exceptional condition, but the message is delivered too late, accessing the ipv6 after its possible deletion. Reorder the statement to avoid the possible UaF; while at it, place the warning outside the idev->lock as it needs no protection.

Faiblesses (CWE)

  • 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 f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < eec49a33611f20336b357b3953df44f1a02049e8 ; affected f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < bacc7f31085c9820922f00bc7d79756ffa13123a ; affected f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 7bfafa1b0cd582983ebec6bb20f0a435528fe567 ; affected f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 7d9f2f4aabd116ca68fbdab5d8fb8dac74c2ea1e ; affected f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 25357b670afb5b517096da783abaa5cc4bf8359e ; affected f1705ec197e705b79ea40fe7a2cc5acfa1d3bfac < 3cd4efb5df72843dfac892d0b3c7a4a8bd926b65
Linux · Linuxaffected 4.6 ; unaffected 0 < 4.6 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.168 ≤ 6.1.* ; unaffected 6.6.134 ≤ 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