xfrm: validate selector family and prefixlen during match (Linux Linux)

CVE-2026-72450
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.17 % · centile 6 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Received

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm: validate selector family and prefixlen during match syzbot reported a shift-out-of-bounds in xfrm_selector_match() due to AF_UNSPEC selector with large prefixlen (e.g. 128) matched against IPv4 flow (when XFRM_STATE_AF_UNSPEC is set). Fix this by: - Rejecting mismatched families in xfrm_selector_match. - Returning false in addr4_match if prefixlen > 32. - Returning false in addr_match if prefixlen > 128 (prevents overflow).

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 8df5cd51fd70c33aa1776e5cbcd82b0a86649d73 < 87a5bbccc7ff4edb3f42fea387124237d2ba91ee ; affected 2d08a6c31c65f23db71a5385ee9cf9d8f9a67a71 < bd7f202cf77556cff59f68dc30e4cdf40cb6e33b ; affected bce1afaa212ec380bf971614f70909a27882b862 < a3968ad4195d72c8fddcc6c0ef39da95ac98711a ; affected 7d9868180bd1e4cf37e7c5067362658971162366 < efa9e3b9f3dea2e1ea4c7edf4edc863faef85986 ; affected 3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 < 78783fefdc8f36879b1a17efa0d3195ea5f2dc5f ; affected 3f0ab59e6537c6a8f9e1b355b48f9c05a76e8563 < 6d99379c58f7f1c6ab2cc7aba01a4f52d71adcfe
Linux · Linuxaffected 6.12 ; unaffected 0 < 6.12 ; 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