Bluetooth: ISO: fix malformed ISO_END/CONT handling (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.40 % · centile 34 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Received
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Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix malformed ISO_END/CONT handling Core specification (Part C vol 4 sec 5.4.5) does not exclude empty ISO_CONT, ISO_END packets. We currently reject them if they are last. If controller sends malformed sequence ISO_START -> rx_len = 4, ISO_CONT skb->len 4, ISO_START that ends payload in ISO_CONT, we leak conn->rx_skb. If controller sends too long ISO_END, we panic on skb_put. If controller sends too short ISO_END we accept it. Fix by marking unfinished ISO_START via conn->rx_skb != NULL. Check skb->len properly before skb_put. Combine the ISO_CONT/END code paths as they require the same initial checks. Reject too short ISO_END packets.
Références
- https://git.kernel.org/stable/c/d2df29dc9abda2fc10ff522eac0969f5b77b3637
- https://git.kernel.org/stable/c/7250b6b5ba9b737cff2c2c1d0760360c7b6bca00
- https://git.kernel.org/stable/c/49aeb54e3c912ef785311264a51ab9f3698e421b
- https://git.kernel.org/stable/c/5e53e285f8c989662e34d4938c728a94226bff34
- https://git.kernel.org/stable/c/990e65eb9387c4ddfa7f68782b6644c2c35d489f
- https://git.kernel.org/stable/c/e054c1a6ae7310d2815778fddb87da616e11c255
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-59233
- GCVE · GCVE-0-2026-72334
Avis du CERT-FR
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected ccf74f2390d60a2f9a75ef496d2564abb478f46a < d2df29dc9abda2fc10ff522eac0969f5b77b3637 ; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a < 7250b6b5ba9b737cff2c2c1d0760360c7b6bca00 ; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a < 49aeb54e3c912ef785311264a51ab9f3698e421b ; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a < 5e53e285f8c989662e34d4938c728a94226bff34 ; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a < 990e65eb9387c4ddfa7f68782b6644c2c35d489f ; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a < e054c1a6ae7310d2815778fddb87da616e11c255 |
| Linux · Linux | affected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* ; unaffected 6.12.111 ≤ 6.12.* ; unaffected 6.18.53 ≤ 6.18.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |