wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.36 % · percentile 30 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: avoid nss underflow in mt7915_mcu_get_sta_nss If a peer's VHT/HE MCS map has no supported spatial stream (all fields 0x3), the loop exits with nss == 0 and the function returned (u8)-1 (255), which was then written into the firmware sta_rec_bf beamforming fields. Clamp the result to 0.
References
- https://git.kernel.org/stable/c/2801477c36a19be4f549fe60e54995f03b0ea7b9
- https://git.kernel.org/stable/c/38f4d6323bcd65e41a691432eddabd2b03acdeee
- https://git.kernel.org/stable/c/25f753f7f620955a8a51e63e445d8b9076c51396
- https://git.kernel.org/stable/c/e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6
- https://git.kernel.org/stable/c/85bd46ab7674b6d357f9a14791352c65fb09eee9
- https://git.kernel.org/stable/c/6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7
- https://git.kernel.org/stable/c/ecfd1a07e78c31d81322fb2d81dc468081cc3004
- https://git.kernel.org/stable/c/4a2f4be532e3ea4e2b536e411793a05aaa51af25
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | Linux |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-82033
- GCVE · GCVE-0-2026-90372
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-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 89029a85482cbcf68026a89fc974e8f6898d6b37 < 2801477c36a19be4f549fe60e54995f03b0ea7b9 ; affected 89029a85482cbcf68026a89fc974e8f6898d6b37 < 38f4d6323bcd65e41a691432eddabd2b03acdeee ; affected 89029a85482cbcf68026a89fc974e8f6898d6b37 < 25f753f7f620955a8a51e63e445d8b9076c51396 ; affected 89029a85482cbcf68026a89fc974e8f6898d6b37 < e63c6291ecddf94769ab91f9d8cdb6ca939f7fc6 ; affected 89029a85482cbcf68026a89fc974e8f6898d6b37 < 85bd46ab7674b6d357f9a14791352c65fb09eee9 ; affected 89029a85482cbcf68026a89fc974e8f6898d6b37 < 6ce78d04c7ea4b66838941b5a4232dd1ee0e2cc7 |
| Linux · Linux | affected 5.8 ; unaffected 0 < 5.8 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 6.6.* |
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 |