Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync (Linux Linux)

CVE-2026-43019
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.10 % · centile 1 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: fix potential UAF in set_cig_params_sync hci_conn lookup and field access must be covered by hdev lock in set_cig_params_sync, otherwise it's possible it is freed concurrently. Take hdev lock to prevent hci_conn from being deleted or modified concurrently. Just RCU lock is not suitable here, as we also want to avoid "tearing" in the configuration.

Faiblesses (CWE)

  • CWE-362 — Situation de compétition
  • 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 a091289218202bc09d9b9caa8afcde1018584aec < 7502c1cf303b69f71d085f5ff7251b0e1b0f09df ; affected a091289218202bc09d9b9caa8afcde1018584aec < 66d432e9b45bae7881ffcdb12cd8fd0bf254ef02 ; affected a091289218202bc09d9b9caa8afcde1018584aec < 7d568fede8eac91161a60b710aa920abe9b0fb9f ; affected a091289218202bc09d9b9caa8afcde1018584aec < bad65b4b0a96139f023eadc28a33125963208449 ; affected a091289218202bc09d9b9caa8afcde1018584aec < a2639a7f0f5bf7d73f337f8f077c19415c62ed2c ; affected 3a273cd0f47dd672d37736e623849374f9ab9ce9
Linux · Linuxaffected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.6.143 ≤ 6.6.* ; unaffected 6.12.81 ≤ 6.12.* ; unaffected 6.18.22 ≤ 6.18.* ; unaffected 6.19.12 ≤ 6.19.*

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