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CVE-2026-46122

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

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.88, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From e4d6b7951812d98417feb10784e400e253caf633 · fixed in 135cb49c9a42a02cceeac7b49ec03e267f7ed6d6; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in 3157ad40b084a8f3932da2641749ab45e99b933e; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in 765709720e6af9a178abc40244a8d1aa39ac4e71; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in c3d7b90dc95020cd9282c4630e402fe224f7644e; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in d7029879bafdac2006c67553807d122283dc6cbf; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in 219ba67e69e49681e48c822d6eaafb5def032f34; From e4d6b7951812d98417feb10784e400e253caf633 · fixed in 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332

  • Linux Linux

    2.6.24

  • KernelLinux

    From 2.6.24 · fixed in 5.10.258; From 5.11.0 · fixed in 5.15.209; From 5.16.0 · fixed in 6.1.175; From 6.2.0 · fixed in 6.6.140; From 6.7.0 · fixed in 6.12.88; From 6.13.0 · fixed in 6.18.30; From 6.19.0 · fixed in 7.0.7

References 8

git.kernel.org