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.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e Patch
- git.kernel.org/stable/c/4242db36de99de734cc1f60e5edd86cda7e598c6 Patch
- git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35 Patch
- git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525 Patch
- git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205 Patch
- git.kernel.org/stable/c/a92bd0503df2488f2cc040f329ebccff1c1934cb Patch
- git.kernel.org/stable/c/df805c1d085b7a96077f0964185764c87060950d Patch
- git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5 Patch
- cert-portal.siemens.com/productcert/html/ssa-784472.html
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 15 November 2026
- CWE
- CWE-129
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