Vulnerability-Lookup

FKIE_CVE-2026-46122

Vulnerability from fkie_nvd - Published: 2026-05-28 10:16 - Updated: 2026-05-28 13:44

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.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-46122",
  "lastModified": "2026-05-28T13:44:01.663",
  "metrics": {},
  "published": "2026-05-28T10:16:27.713",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1f4f78bf8549e6ac4f04fba4176854f3a6e0c332"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/219ba67e69e49681e48c822d6eaafb5def032f34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/c3d7b90dc95020cd9282c4630e402fe224f7644e"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d7029879bafdac2006c67553807d122283dc6cbf"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-46122 (GCVE-0-2026-46122)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-05-28 09:35

Title

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

Summary

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/c3d7b90dc95020cd9…
https://git.kernel.org/stable/c/1e9e55cf66f0fa479…
https://git.kernel.org/stable/c/d7029879bafdac200…
https://git.kernel.org/stable/c/219ba67e69e49681e…
https://git.kernel.org/stable/c/1f4f78bf8549e6ac4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: e4d6b7951812d98417feb10784e400e253caf633 , < c3d7b90dc95020cd9282c4630e402fe224f7644e (git) Affected: e4d6b7951812d98417feb10784e400e253caf633 , < 1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14 (git) Affected: e4d6b7951812d98417feb10784e400e253caf633 , < d7029879bafdac2006c67553807d122283dc6cbf (git) Affected: e4d6b7951812d98417feb10784e400e253caf633 , < 219ba67e69e49681e48c822d6eaafb5def032f34 (git) Affected: e4d6b7951812d98417feb10784e400e253caf633 , < 1f4f78bf8549e6ac4f04fba4176854f3a6e0c332 (git)
Linux	Linux	Affected: 2.6.24 Unaffected: 0 , < 2.6.24 (semver) Unaffected: 6.6.140 , ≤ 6.6.* (semver) Unaffected: 6.12.88 , ≤ 6.12.* (semver) Unaffected: 6.18.30 , ≤ 6.18.* (semver) Unaffected: 7.0.7 , ≤ 7.0.* (semver) Unaffected: 7.1-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/b43/xmit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c3d7b90dc95020cd9282c4630e402fe224f7644e",
              "status": "affected",
              "version": "e4d6b7951812d98417feb10784e400e253caf633",
              "versionType": "git"
            },
            {
              "lessThan": "1e9e55cf66f0fa4799f4d86ef3aaba8e606b5c14",
              "status": "affected",
              "version": "e4d6b7951812d98417feb10784e400e253caf633",
              "versionType": "git"
            },
            {
              "lessThan": "d7029879bafdac2006c67553807d122283dc6cbf",
              "status": "affected",
              "version": "e4d6b7951812d98417feb10784e400e253caf633",
              "versionType": "git"
            },
            {
              "lessThan": "219ba67e69e49681e48c822d6eaafb5def032f34",
              "status": "affected",
              "version": "e4d6b7951812d98417feb10784e400e253caf633",
              "versionType": "git"
            },
            {
              "lessThan": "1f4f78bf8549e6ac4f04fba4176854f3a6e0c332",
              "status": "affected",
              "version": "e4d6b7951812d98417feb10784e400e253caf633",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/b43/xmit.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.24"
            },
            {
              "lessThan": "2.6.24",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "2.6.24",
                  "vulnerable": true
                }
              ],
              "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": "2026-05-28T09:35:37.141Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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": "2026-05-28T09:35:37.141Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2026-46122

CVE-2026-46122 (GCVE-0-2026-46122)

Tags

Sightings

Nomenclature