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Vulnerability record · CVE-2026-46163 · published 28 May 2026

CVE-2026-46163: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.18% · top 93.7% CWE-129 · CWE-129
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
8References
17 Jun 2026Last modified by NVD

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.

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/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e Patch
https://git.kernel.org/stable/c/4242db36de99de734cc1f60e5edd86cda7e598c6 Patch
https://git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35 Patch
https://git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525 Patch
https://git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205 Patch
https://git.kernel.org/stable/c/a92bd0503df2488f2cc040f329ebccff1c1934cb Patch
https://git.kernel.org/stable/c/df805c1d085b7a96077f0964185764c87060950d Patch
https://git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46163), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.