CVE-2026-46163

high

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

https://git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5

https://git.kernel.org/stable/c/df805c1d085b7a96077f0964185764c87060950d

https://git.kernel.org/stable/c/a92bd0503df2488f2cc040f329ebccff1c1934cb

https://git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205

https://git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525

https://git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35

https://git.kernel.org/stable/c/4242db36de99de734cc1f60e5edd86cda7e598c6

https://git.kernel.org/stable/c/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e

Details

Source: Mitre, NVD

Published: 2026-05-28

Updated: 2026-06-01

Risk Information

CVSS v2

Base Score: 5.6

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

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00018