wifi: cfg80211: preserve hidden-group beacon IE ownership (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.18 % · percentile 8 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: preserve hidden-group beacon IE ownership A hidden-group probe-response entry borrows its beacon IEs from the group's beacon entry. cfg80211_update_assoc_bss_entry() can pass such an entry to cfg80211_update_known_bss() when merging scan entries after a channel switch. Copying the borrowed beacon_ies into the associated entry gives the same allocation two owners. Releasing the group's beacon entry can then leave the associated entry pointing to freed IEs, which are freed again when that entry is released. Skip beacon IE replacement when the source entry belongs to a hidden group. Preserve probe-response processing, the subsequent metadata updates, and the existing rejection path for conflicting hidden beacon updates.
References
- https://git.kernel.org/stable/c/00f83d39675adc12d56957a1f5e316812157e4d3
- https://git.kernel.org/stable/c/3c44f780d1738e9ddf438729f5ff6ceb45f9ded3
- https://git.kernel.org/stable/c/8f79f429dc87a4f21e4fcf9a4d3df9484ca9a294
- https://git.kernel.org/stable/c/5617d5328839003c91007ce906b4f100b43926e9
- https://git.kernel.org/stable/c/49b66110a08e4f926f6393e938f226de2750a08b
- https://git.kernel.org/stable/c/dd7973a4130b0862be38d7e08cc0e874b3d99967
- https://git.kernel.org/stable/c/5f27581c176f84b52ec0ab9be7b500c10667ef60
- https://git.kernel.org/stable/c/cc45f313d85533d647ce619326302aad6f797c14
European references
- ENISA EUVD · EUVD-2026-103908
- GCVE · GCVE-0-2026-98823
CERT-FR advisories
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 0afd425b1b64251f19b5d8d8b49bf56fefbc643f < 00f83d39675adc12d56957a1f5e316812157e4d3 ; affected 0afd425b1b64251f19b5d8d8b49bf56fefbc643f < 3c44f780d1738e9ddf438729f5ff6ceb45f9ded3 ; affected 0afd425b1b64251f19b5d8d8b49bf56fefbc643f < 8f79f429dc87a4f21e4fcf9a4d3df9484ca9a294 ; affected 0afd425b1b64251f19b5d8d8b49bf56fefbc643f < 5617d5328839003c91007ce906b4f100b43926e9 ; affected 0afd425b1b64251f19b5d8d8b49bf56fefbc643f < 49b66110a08e4f926f6393e938f226de2750a08b ; affected 0afd425b1b64251f19b5d8d8b49bf56fefbc643f < dd7973a4130b0862be38d7e08cc0e874b3d99967 |
| Linux · Linux | affected 5.4 ; unaffected 0 < 5.4 ; unaffected 5.10.273 ≤ 5.10.* ; unaffected 5.15.224 ≤ 5.15.* ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 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 |