Bluetooth: btmtk: validate WMT event SKB length before struct access (Linux Linux)

CVE-2026-46140
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.13 % · centile 3 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Undergoing Analysis

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: validate WMT event SKB length before struct access btmtk_usb_hci_wmt_sync() casts the WMT event response SKB data to struct btmtk_hci_wmt_evt (7 bytes) and struct btmtk_hci_wmt_evt_funcc (9 bytes) without first checking that the SKB contains enough data. A short firmware response causes out-of-bounds reads from SKB tailroom. Use skb_pull_data() to validate and advance past the base WMT event header. For the FUNC_CTRL case, pull the additional status field bytes before accessing them.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected f0457842215438786e2e205ad06a4fbb8ab63cd0 < 36c85f7029484d5ede769f8873d16e9c8e35533c ; affected d019930b0049fc2648a6b279893d8ad330596e81 < c411cf1bfde951cfa821809cf4020ba177f76e0c ; affected d019930b0049fc2648a6b279893d8ad330596e81 < 624fb79dadc1b65757986a9d0fdde5c0cf3fe179 ; affected d019930b0049fc2648a6b279893d8ad330596e81 < 70d37a8b9229e394cc17ddad47e90b81d80fcd09 ; affected d019930b0049fc2648a6b279893d8ad330596e81 < 634a4408c0615c523cf7531790f4f14a422b9206 ; affected 6.6.142 < 6.6.144
Linux · Linuxaffected 6.11 ; unaffected 0 < 6.11 ; unaffected 6.6.144 ≤ 6.6.* ; unaffected 6.12.88 ≤ 6.12.* ; unaffected 6.18.30 ≤ 6.18.* ; unaffected 7.0.7 ≤ 7.0.*

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