Bluetooth: hci_codec: validate vendor codec count length (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.21 % · percentile 11 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_codec: validate vendor codec count length The Read Local Supported Codecs parsers consume the variable-sized standard codec array before parsing the vendor codec count. Although the initial reply-size check includes a vendor count byte in the fixed layout, it does not guarantee that the byte remains after the standard codec array. If a controller reply ends immediately after that array, calculating the vendor codec array size reads vnd_codecs->num beyond the skb data. Use skb_pull_data() to validate and consume each codec header before using its count in both command variants.
References
- https://git.kernel.org/stable/c/9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8
- https://git.kernel.org/stable/c/a6da782fefae611e68a1aa79644065fc8ca5abcd
- https://git.kernel.org/stable/c/e4cfd3c4299105237458b27958bd7b0aa4c60795
- https://git.kernel.org/stable/c/f49a543d76d48f184b34225d9c0e2fc4cbdea8ec
- https://git.kernel.org/stable/c/12a82819b0cada6e304790b1097f8f9006eb6123
- https://git.kernel.org/stable/c/d0795cfd6f655f4de84868a4f4bb41a03f037b3d
European references
- ENISA EUVD · EUVD-2026-93175
- GCVE · GCVE-0-2026-98247
CERT-FR advisories
- 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-1374 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 < 9c04b9a4d08b95dee901d24b7607c4cbd65fa0a8 ; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 < a6da782fefae611e68a1aa79644065fc8ca5abcd ; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 < e4cfd3c4299105237458b27958bd7b0aa4c60795 ; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 < f49a543d76d48f184b34225d9c0e2fc4cbdea8ec ; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 < 12a82819b0cada6e304790b1097f8f9006eb6123 ; affected 8961987f3f5fa2f2618e72304d013c8dd5e604a6 < d0795cfd6f655f4de84868a4f4bb41a03f037b3d |
| Linux · Linux | affected 5.16 ; unaffected 0 < 5.16 ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* ; unaffected 6.12.112 ≤ 6.12.* ; unaffected 6.18.54 ≤ 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 |