CVE-2026-46122

wifi: b43: enforce bounds check on firmware key index in b43_rx()

State: Published
Severity: Not scored
Published: May 28, 2026
Updated: Oct 15, 2026
Reserved: May 13, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e4d6b7951812d98417feb10784e400e253caf633 to before 135cb49c9a42a02cceeac7b49ec03e267f7ed6d6Affected e4d6b7951812d98417feb10784e400e253caf633 to before 3157ad40b084a8f3932da2641749ab45e99b933eAffected e4d6b7951812d98417feb10784e400e253caf633 to before 765709720e6af9a178abc40244a8d1aa39ac4e71Affected e4d6b7951812d98417feb10784e400e253caf633 to before c3d7b90dc95020cd9282c4630e402fe224f7644eAffected e4d6b7951812d98417feb10784e400e253caf633 to before 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14Affected e4d6b7951812d98417feb10784e400e253caf633 to before d7029879bafdac2006c67553807d122283dc6cbfAffected e4d6b7951812d98417feb10784e400e253caf633 to before 219ba67e69e49681e48c822d6eaafb5def032f34Affected e4d6b7951812d98417feb10784e400e253caf633 to before 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332Affected
LinuxLinux	2.6.24Affected before 2.6.24Not affected 5.10.258 through 5.10.Not affected 5.15.209 through 5.15.Not affected 6.1.175 through 6.1.Not affected 6.6.140 through 6.6.Not affected 6.12.88 through 6.12.Not affected 6.18.30 through 6.18.Not affected 7.0.7 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

e4d6b7951812d98417feb10784e400e253caf633 to before 135cb49c9a42a02cceeac7b49ec03e267f7ed6d6Affected
e4d6b7951812d98417feb10784e400e253caf633 to before 3157ad40b084a8f3932da2641749ab45e99b933eAffected
e4d6b7951812d98417feb10784e400e253caf633 to before 765709720e6af9a178abc40244a8d1aa39ac4e71Affected
e4d6b7951812d98417feb10784e400e253caf633 to before c3d7b90dc95020cd9282c4630e402fe224f7644eAffected
e4d6b7951812d98417feb10784e400e253caf633 to before 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14Affected
e4d6b7951812d98417feb10784e400e253caf633 to before d7029879bafdac2006c67553807d122283dc6cbfAffected
e4d6b7951812d98417feb10784e400e253caf633 to before 219ba67e69e49681e48c822d6eaafb5def032f34Affected
e4d6b7951812d98417feb10784e400e253caf633 to before 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332Affected

LinuxLinux

2.6.24Affected
before 2.6.24Not affected
5.10.258 through 5.10.*Not affected
5.15.209 through 5.15.*Not affected
6.1.175 through 6.1.*Not affected
6.6.140 through 6.6.*Not affected
6.12.88 through 6.12.*Not affected
6.18.30 through 6.18.*Not affected
7.0.7 through 7.0.*Not affected
7.1 and laterNot affected

References

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