Vulnerability-Lookup

GHSA-2QQ4-4RXX-PJHM

Vulnerability from github – Published: 2026-05-28 12:30 – Updated: 2026-06-10 21:31

Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: b43legacy: enforce bounds check on firmware key index in RX path

Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[].

Make the check enforcing by dropping the frame for invalid indices.

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-46163"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-28T10:16:31Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43legacy: enforce bounds check on firmware key index in RX path\n\nSame fix as b43: the firmware-controlled key index in b43legacy_rx()\ncan exceed dev-\u003emax_nr_keys. The existing B43legacy_WARN_ON is\nnon-enforcing in production builds, allowing an out-of-bounds read of\ndev-\u003ekey[].\n\nMake the check enforcing by dropping the frame for invalid indices.",
  "id": "GHSA-2qq4-4rxx-pjhm",
  "modified": "2026-06-10T21:31:25Z",
  "published": "2026-05-28T12:30:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46163"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1baaeb6adecb9691748c0253dab6ddd19a2b4e9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4242db36de99de734cc1f60e5edd86cda7e598c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ee946077607d7783ae6709a899213fc4fe08f35"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d1bc155802943e92c57a5fb923d23edfbf0b525"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a035766f970bde2d4298346a31a80685be5c0205"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a92bd0503df2488f2cc040f329ebccff1c1934cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df805c1d085b7a96077f0964185764c87060950d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-46163 (GCVE-0-2026-46163)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:36 – Updated: 2026-06-14 17:59

Title

wifi: b43legacy: enforce bounds check on firmware key index in RX path

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: b43legacy: enforce bounds check on firmware key index in RX path Same fix as b43: the firmware-controlled key index in b43legacy_rx() can exceed dev->max_nr_keys. The existing B43legacy_WARN_ON is non-enforcing in production builds, allowing an out-of-bounds read of dev->key[]. Make the check enforcing by dropping the frame for invalid indices.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/a92bd0503df2488f2…
https://git.kernel.org/stable/c/df805c1d085b7a960…
https://git.kernel.org/stable/c/4242db36de99de734…
https://git.kernel.org/stable/c/1baaeb6adecb96917…
https://git.kernel.org/stable/c/6ee946077607d7783…
https://git.kernel.org/stable/c/9d1bc155802943e92…
https://git.kernel.org/stable/c/fdd4e51979f42ca8b…
https://git.kernel.org/stable/c/a035766f970bde2d4…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < a92bd0503df2488f2cc040f329ebccff1c1934cb (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < df805c1d085b7a96077f0964185764c87060950d (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < 4242db36de99de734cc1f60e5edd86cda7e598c6 (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < 1baaeb6adecb9691748c0253dab6ddd19a2b4e9e (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < 6ee946077607d7783ae6709a899213fc4fe08f35 (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < 9d1bc155802943e92c57a5fb923d23edfbf0b525 (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < fdd4e51979f42ca8b1ab7e6176b607e1caabf2a5 (git) Affected: 75388acd0cd827dc1498043daa7d1c760902cd67 , < a035766f970bde2d4298346a31a80685be5c0205 (git)
Linux	Linux	Affected: 2.6.24 Unaffected: 0 , < 2.6.24 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (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 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/broadcom/b43legacy/xmit.c"
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              "versionType": "semver"
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              "status": "unaffected",
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              "status": "unaffected",
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        {
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: b43legacy: enforce bounds check on firmware key index in RX path\n\nSame fix as b43: the firmware-controlled key index in b43legacy_rx()\ncan exceed dev-\u003emax_nr_keys. The existing B43legacy_WARN_ON is\nnon-enforcing in production builds, allowing an out-of-bounds read of\ndev-\u003ekey[].\n\nMake the check enforcing by dropping the frame for invalid indices."
        }
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      "providerMetadata": {
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        {
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      ],
      "title": "wifi: b43legacy: enforce bounds check on firmware key index in RX path",
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        "engine": "bippy-1.2.0"
      }
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    "cveId": "CVE-2026-46163",
    "datePublished": "2026-05-28T09:36:18.946Z",
    "dateReserved": "2026-05-13T15:03:33.102Z",
    "dateUpdated": "2026-06-14T17:59:18.913Z",
    "state": "PUBLISHED"
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}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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