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.

References (8)

Core 8

Scores

CVSS v3 7.8
EPSS 0.0013
EPSS Percentile 3.0%
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 (28)
linux/Kernel 2.6.24 - 5.10.258linux
linux/Kernel 5.11.0 - 5.15.209linux
linux/Kernel 5.16.0 - 6.1.175linux
linux/Kernel 6.13.0 - 6.18.30linux
linux/Kernel 6.19.0 - 7.0.7linux
linux/Kernel 6.2.0 - 6.6.140linux
linux/Kernel 6.7.0 - 6.12.88linux
Linux/Linux < 2.6.24
Linux/Linux 2.6.24
Linux/Linux 5.10.258 - 5.10.*
... and 18 more
Published May 28, 2026
Tracked Since May 28, 2026