CVE-2026-46163

HIGH

wifi: b43legacy: enforce bounds check on firmware key index in RX path

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.

Scores

CVSS v3 7.8
EPSS 0.0014
EPSS Percentile 3.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-129
Status published
Products (21)
Linux/Linux < 2.6.24
Linux/Linux 2.6.24
Linux/Linux 5.10.258 - 5.10.*
Linux/Linux 5.15.209 - 5.15.*
Linux/Linux 6.1.175 - 6.1.*
Linux/Linux 6.12.88 - 6.12.*
Linux/Linux 6.18.30 - 6.18.*
Linux/Linux 6.6.140 - 6.6.*
Linux/Linux 7.0.7 - 7.0.*
Linux/Linux 7.1
... and 11 more
Published May 28, 2026
Tracked Since May 28, 2026