Bluetooth: serialize accept_q access (Linux Linux)

CVE-2026-52918
HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.22 % · centile 12 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: serialize accept_q access bt_sock_poll() walks the accept queue without synchronization, while child teardown can unlink the same socket and drop its last reference. The unsynchronized accept queue walk has existed since the initial Bluetooth import. Protect accept_q with a dedicated lock for queue updates and polling. Also rework bt_accept_dequeue() to take temporary child references under the queue lock before dropping it and locking the child socket.

Faiblesses (CWE)

  • CWE-362 — Situation de compétition

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 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)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d9ce4de05df2385c19e2c7d12f529144e1a44af1 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 41c8c1c7923e86e0eb59cfb4279349112756a336 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4ec17782fd186f901a7329605d11048b085b945a ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < be43e6b4043113c3b3cf887c3c8350f67140274c ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 85f8674cae82053f1e6bab295f6a8422cca14db5 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8b4c412e001b0c670eb937beab491af974da55b3
Linux · Linuxaffected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 5.10.259 ≤ 5.10.* ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.142 ≤ 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