CVE-2026-46122

critical

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: b43: enforce bounds check on firmware key index in b43_rx() The firmware-controlled key index in b43_rx() can exceed the dev->key[] array size (58 entries). The existing B43_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read. Make the B43_WARN_ON check enforcing by dropping the frame when the firmware returns an invalid key index.

References

https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf

https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e

https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71

https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e

https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34

https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332

https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14

https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6

Details

Source: Mitre, NVD

Published: 2026-05-28

Updated: 2026-05-28

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00018