CVE-2026-68161

sctp: close UDP tunnel sockets during netns teardown

CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.68 % · 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: sctp: close UDP tunnel sockets during netns teardown proc_sctp_do_udp_port() starts per-net SCTP UDP tunneling sockets when net.sctp.udp_port is set, and stops/restarts them when the sysctl value changes. The netns exit path does not stop these sockets, so a namespace can be torn down while its SCTP UDP tunnel sockets are still installed. Close the UDP tunnel sockets from sctp_ctrlsock_exit() after unregistering the per-net sysctl table. This prevents new sysctl writes from racing in while the sockets are being released, and closes the sockets before the control socket is destroyed.

Faiblesses (CWE)

  • CWE-404 — Fermeture ou libération incorrecte d'une ressource

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 046c052b475e7119b6a30e3483e2888fc606a2f8 < c29affd44e6769e3073235d4b471d9b501fa8166 ; affected 046c052b475e7119b6a30e3483e2888fc606a2f8 < c6eb2d615210b80339548ab07c0230edaab9a6c7 ; affected 046c052b475e7119b6a30e3483e2888fc606a2f8 < 8ff78591d309c50a4fdab683b68dd8d512a270dd ; affected 046c052b475e7119b6a30e3483e2888fc606a2f8 < 3bf0e349cbb4f975f35eb22753acc346b89c66a0 ; affected 046c052b475e7119b6a30e3483e2888fc606a2f8 < 37ff9794be48d0caa37687e04d09675f9c849121 ; affected 046c052b475e7119b6a30e3483e2888fc606a2f8 < ffb2bd7ade36ec4da32c46a6eddbf4515316d08c
Linux · Linuxaffected 5.11 ; unaffected 0 < 5.11 ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.151 ≤ 6.6.* ; unaffected 6.12.101 ≤ 6.12.* ; unaffected 6.18.42 ≤ 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