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CVE-2026-46163

wifi: b43legacy: enforce bounds check on firmware key index in RX path PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 75388acd0cd827dc1498043daa7d1c760902cd67 before a92bd0503df2488f2cc040f329ebccff1c1934cb; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before df805c1d085b7a96077f0964185764c87060950d; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before 4242db36de99de734cc1f60e5edd86cda7e598c6; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before 1baaeb6adecb9691748c0253dab6ddd19a2b4e9e; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before 6ee946077607d7783ae6709a899213fc4fe08f35; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before 9d1bc155802943e92c57a5fb923d23edfbf0b525; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5; affected 75388acd0cd827dc1498043daa7d1c760902cd67 before a035766f970bde2d4298346a31a80685be5c0205
Linux / Linuxaffected 2.6.24; unaffected 0 before 2.6.24; unaffected 5.10.258 through 5.10.*; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.88 through 6.12.*; unaffected 6.18.30 through 6.18.*; unaffected 7.0.7 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.