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Vulnerability record · CVE-2026-46122 · published 28 May 2026

CVE-2026-46122: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.6% CWE-129 · CWE-129 Undergoing Analysis
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
24 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6 Patch
https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 Patch
https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 Patch
https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34 Patch
https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e Patch
https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71 Patch
https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e Patch
https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46122), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.