Vulnerability-Lookup

GHSA-CFCV-HX89-922W

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-10 15:33

Details

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

wifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()

mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-68308"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-10T13:20:20Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()\n\nmt76_connac_get_he_phy_cap routine can theoretically return NULL so\ncheck cap pointer before dereferencing it.",
  "id": "GHSA-cfcv-hx89-922w",
  "modified": "2026-08-10T15:33:45Z",
  "published": "2026-08-10T15:33:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68308"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4fd85fd2373501b7386e93a5ce4a549d7c4e64e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b8a079e22ce9fc3c0d05b148ef67e4c6e576678"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8bc7167e8a86489b7cb96a69cf1fb671d6df014b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d14238523ca4c6f5fcb54d1920eb2f8525a7711f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e858cf6bf99880343348ff1e8c942aaff1d9d592"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68308 (GCVE-0-2026-68308)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-17 05:03

Title

wifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap() mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

5 references

URL	Tags
https://git.kernel.org/stable/c/4fd85fd2373501b73…
https://git.kernel.org/stable/c/8b8a079e22ce9fc3c…
https://git.kernel.org/stable/c/d14238523ca4c6f5f…
https://git.kernel.org/stable/c/8bc7167e8a86489b7…
https://git.kernel.org/stable/c/e858cf6bf99880343…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 98686cd21624c75a043e96812beadddf4f6f48e5 , < 4fd85fd2373501b7386e93a5ce4a549d7c4e64e3 (git) Affected: 98686cd21624c75a043e96812beadddf4f6f48e5 , < 8b8a079e22ce9fc3c0d05b148ef67e4c6e576678 (git) Affected: 98686cd21624c75a043e96812beadddf4f6f48e5 , < d14238523ca4c6f5fcb54d1920eb2f8525a7711f (git) Affected: 98686cd21624c75a043e96812beadddf4f6f48e5 , < 8bc7167e8a86489b7cb96a69cf1fb671d6df014b (git) Affected: 98686cd21624c75a043e96812beadddf4f6f48e5 , < e858cf6bf99880343348ff1e8c942aaff1d9d592 (git)
Linux	Linux	Affected: 6.2 Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.148 , ≤ 6.6.* (semver) Unaffected: 6.12.101 , ≤ 6.12.* (semver) Unaffected: 6.18.42 , ≤ 6.18.* (semver) Unaffected: 7.1.6 , ≤ 7.1.* (semver) Unaffected: 7.2 , ≤ * (original_commit_for_fix)

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JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4fd85fd2373501b7386e93a5ce4a549d7c4e64e3",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "8b8a079e22ce9fc3c0d05b148ef67e4c6e576678",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "d14238523ca4c6f5fcb54d1920eb2f8525a7711f",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "8bc7167e8a86489b7cb96a69cf1fb671d6df014b",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            },
            {
              "lessThan": "e858cf6bf99880343348ff1e8c942aaff1d9d592",
              "status": "affected",
              "version": "98686cd21624c75a043e96812beadddf4f6f48e5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7996/mcu.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.148",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.101",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.42",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.148",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.101",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.42",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.6",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()\n\nmt76_connac_get_he_phy_cap routine can theoretically return NULL so\ncheck cap pointer before dereferencing it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-17T05:03:00.803Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4fd85fd2373501b7386e93a5ce4a549d7c4e64e3"
        },
        {
          "url": "https://git.kernel.org/stable/c/8b8a079e22ce9fc3c0d05b148ef67e4c6e576678"
        },
        {
          "url": "https://git.kernel.org/stable/c/d14238523ca4c6f5fcb54d1920eb2f8525a7711f"
        },
        {
          "url": "https://git.kernel.org/stable/c/8bc7167e8a86489b7cb96a69cf1fb671d6df014b"
        },
        {
          "url": "https://git.kernel.org/stable/c/e858cf6bf99880343348ff1e8c942aaff1d9d592"
        }
      ],
      "title": "wifi: mt76: mt7996: check pointer returned by mt76_connac_get_he_phy_cap()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-68308",
    "datePublished": "2026-08-10T12:02:42.934Z",
    "dateReserved": "2026-07-30T09:28:09.381Z",
    "dateUpdated": "2026-08-17T05:03:00.803Z",
    "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.

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.

Action not permitted

GHSA-CFCV-HX89-922W

CVE-2026-68308 (GCVE-0-2026-68308)

Tags

Sightings

Nomenclature