CVE-2026-46122 (GCVE-0-2026-46122)
Vulnerability from cvelistv5
Published
2026-05-28 09:35
Modified
2026-06-14 17:56
Severity ?
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.
Impacted products
Vendor Product Version
Linux Linux Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
Version: e4d6b7951812d98417feb10784e400e253caf633
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/b43/xmit.c"
          ],
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.24"
            },
            {
              "lessThan": "2.6.24",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.258",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.175",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
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            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
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            },
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              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.258",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
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              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43: enforce bounds check on firmware key index in b43_rx()\n\nThe firmware-controlled key index in b43_rx() can exceed the dev-\u003ekey[]\narray size (58 entries). The existing B43_WARN_ON is non-enforcing in\nproduction builds, allowing an out-of-bounds read.\n\nMake the B43_WARN_ON check enforcing by dropping the frame when the\nfirmware returns an invalid key index."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:56:03.781Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/135cb49c9a42a02cceeac7b49ec03e267f7ed6d6"
        },
        {
          "url": "https://git.kernel.org/stable/c/3157ad40b084a8f3932da2641749ab45e99b933e"
        },
        {
          "url": "https://git.kernel.org/stable/c/765709720e6af9a178abc40244a8d1aa39ac4e71"
        },
        {
          "url": "https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf"
        },
        {
          "url": "https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34"
        },
        {
          "url": "https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332"
        }
      ],
      "title": "wifi: b43: enforce bounds check on firmware key index in b43_rx()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46122",
    "datePublished": "2026-05-28T09:35:37.141Z",
    "dateReserved": "2026-05-13T15:03:33.098Z",
    "dateUpdated": "2026-06-14T17:56:03.781Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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