Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp (Linux Linux)

CVE-2026-53071
HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.43 % · centile 37 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the file acquires the lock first. A remote BLE device can send a crafted L2CAP ECRED reconfiguration response to corrupt the channel list while another thread is iterating it. Add l2cap_chan_hold() and l2cap_chan_lock() before l2cap_chan_del(), and l2cap_chan_unlock() and l2cap_chan_put() after, matching the pattern used in l2cap_ecred_conn_rsp() and l2cap_conn_del().

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération
  • CWE-667 — Improper Locking

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hredhat-SADP
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 15f02b91056253e8cdc592888f431da0731337b8 < 96dca51715d86559ed6ed8028e5445cecb80f3ae ; affected 15f02b91056253e8cdc592888f431da0731337b8 < 330b20ec97916961ee0e6c29c06bc0fa7c96e64c ; affected 15f02b91056253e8cdc592888f431da0731337b8 < 0ccd75c51f620374086f359e906917676e699a1c ; affected 15f02b91056253e8cdc592888f431da0731337b8 < 77a853aec710b2fdf41fa298ea3cbc9a4358f917 ; affected 15f02b91056253e8cdc592888f431da0731337b8 < fe1188abdae9b7a8199dcdfcf9244d5e5d61eb14 ; affected 15f02b91056253e8cdc592888f431da0731337b8 < dc89961b76f12aff47124c1df4bdb32a080f4d0c
Linux · Linuxaffected 5.7 ; unaffected 0 < 5.7 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.141 ≤ 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