CVE-2026-23246

HIGH

wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.

References (5)

Core 5

Scores

CVSS v3 8.8
EPSS 0.0002
EPSS Percentile 6.4%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

Status published
Products (17)
linux/Kernel 6.13.0 - 6.18.17linux
linux/Kernel 6.19.0 - 6.19.7linux
linux/Kernel 6.5.0 - 6.6.130linux
linux/Kernel 6.7.0 - 6.12.77linux
Linux/Linux < 6.5
Linux/Linux 6.12.77 - 6.12.*
Linux/Linux 6.18.17 - 6.18.*
Linux/Linux 6.19.7 - 6.19.*
Linux/Linux 6.5
Linux/Linux 6.6.130 - 6.6.*
... and 7 more
Published Mar 18, 2026
Tracked Since Mar 18, 2026