thunderbolt: Validate XDomain request packet size before type cast (Linux Linux)

CVE-2026-53147
HIGH 8.1

En bref

Source
NVD
EPSS
EPSS 0.27 % · centile 19 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Validate XDomain request packet size before type cast tb_xdp_handle_request() casts the received packet buffer to protocol-specific structs without verifying that the allocation is large enough for the target type. A peer can send a minimal XDomain packet that passes the generic header length check but is shorter than the struct accessed after the cast, causing out-of- bounds reads from the kmemdup allocation. Plumb the packet length through xdomain_request_work and validate it against the expected struct size before each cast.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.1CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HLinux
CVSS 3.1HIGH 8.1CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < a770e62923090d7572f1f5a8507ae551d354a057 ; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 0dd61ba03d05187726ecdf9c0e2175a81b9b24f6 ; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 79235c8add5da4bf27a12f5a5dbb579f300c059e ; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 46da5c3ea011e884028a91cf913db093920a915b ; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < 07cd2787cdf8942d24a1a3ef81aa89b526fb6381 ; affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 < a504b9f2797b739e0304d537e8aa4ce883ecce39
Linux · Linuxaffected 4.15 ; unaffected 0 < 4.15 ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.143 ≤ 6.6.* ; unaffected 6.12.94 ≤ 6.12.* ; unaffected 6.18.36 ≤ 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