wifi: b43: enforce bounds check on firmware key index in b43_rx()
Summary
| CVE | CVE-2026-46122 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-28 10:16:27 UTC |
| Updated | 2026-06-01 17:17:26 UTC |
| 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. |
Risk And Classification
EPSS: 0.000320000 probability, percentile 0.097350000 (date 2026-06-04)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 135cb49c9a42a02cceeac7b49ec03e267f7ed6d6 git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 3157ad40b084a8f3932da2641749ab45e99b933e git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 765709720e6af9a178abc40244a8d1aa39ac4e71 git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 c3d7b90dc95020cd9282c4630e402fe224f7644e git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 d7029879bafdac2006c67553807d122283dc6cbf git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 219ba67e69e49681e48c822d6eaafb5def032f34 git | Not specified |
| CNA | Linux | Linux | affected e4d6b7951812d98417feb10784e400e253caf633 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 git | Not specified |
| CNA | Linux | Linux | affected 2.6.24 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.24 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.258 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.209 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.175 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.140 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.88 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.30 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.7 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1-rc3 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.