wifi: rsi: validate beacon length before fixed buffer copy (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: validate beacon length before fixed buffer copy rsi_prepare_beacon() copies the mac80211 beacon frame after FRAME_DESC_SZ into a management skb whose usable tailroom may be smaller than MAX_MGMT_PKT_SIZE after alignment. Validate the beacon length against the actual tailroom before the copy and skb_put(). Leave ownership of the management skb with the caller on error, matching the existing rsi_send_beacon() cleanup path.
References
- https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44
- https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632
- https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1e
- https://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47
- https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991
- https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7
- https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea
European references
- ENISA EUVD · EUVD-2026-86189
- GCVE · GCVE-0-2026-93802
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 d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 795ba65f46fe44061f1195951c122cc8ec685d44 ; affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 66a964432b2758a4cf69962366e37581d6e70632 ; affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 7f99742c3c2801f8033d8b7a0a58254d7f24fb1e ; affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb < f08d7f3c916335a0e539f1c45c130615967fac47 ; affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 87710ad633ce4588aec88611d0d0745eb33a6991 ; affected d26a9559403c7c3ec3b430f5825bc22c3d40abdb < 266f195d5a14eec6c482fd09fbc924584c3371a7 |
| Linux · Linux | affected 4.14 ; unaffected 0 < 4.14 ; unaffected 5.10.271 ≤ 5.10.* ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 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 |