CVE-2026-46122

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

HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Undergoing Analysis

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.

Weaknesses (CWE)

  • CWE-129 — Improper Validation of Array Index

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected e4d6b7951812d98417feb10784e400e253caf633 < 135cb49c9a42a02cceeac7b49ec03e267f7ed6d6 ; affected e4d6b7951812d98417feb10784e400e253caf633 < 3157ad40b084a8f3932da2641749ab45e99b933e ; affected e4d6b7951812d98417feb10784e400e253caf633 < 765709720e6af9a178abc40244a8d1aa39ac4e71 ; affected e4d6b7951812d98417feb10784e400e253caf633 < c3d7b90dc95020cd9282c4630e402fe224f7644e ; affected e4d6b7951812d98417feb10784e400e253caf633 < 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 ; affected e4d6b7951812d98417feb10784e400e253caf633 < d7029879bafdac2006c67553807d122283dc6cbf
Linux · Linuxaffected 2.6.24 ; unaffected 0 < 2.6.24 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.140 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD