Vulnerability-Lookup

GHSA-QJJF-QC2V-CVJC

Vulnerability from github – Published: 2026-08-10 15:33 – Updated: 2026-08-19 18:32

Details

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

wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv()

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-2026-68309"
  ],
  "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: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv()\n\nmt76_connac_get_he_phy_cap routine can theoretically return NULL so\ncheck cap pointer before dereferencing it.",
  "id": "GHSA-qjjf-qc2v-cvjc",
  "modified": "2026-08-19T18:32:13Z",
  "published": "2026-08-10T15:33:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68309"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2afc2d5098866518a5c446a2e647b1b3f43daaf4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2c1fb2335f5e3afb34f91bc07ecb63517c328090"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8709c66e665a2a09192853d4f3d0fb4bd0f76403"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/91eb15c026debd8b7bfbd83f062e6245a4e69964"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b09508dd7bc4a8948ea00603041a918c09788502"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c058786b09cfab080125bc3ee7928a181dcbd37a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1f8705d6545d20950991785306d08884b0056fc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-68309 (GCVE-0-2026-68309)

Vulnerability from cvelistv5 – Published: 2026-08-10 12:02 – Updated: 2026-08-19 16:33

Title

wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv() 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

7 references

URL	Tags
https://git.kernel.org/stable/c/d1f8705d6545d2095…
https://git.kernel.org/stable/c/91eb15c026debd8b7…
https://git.kernel.org/stable/c/b09508dd7bc4a8948…
https://git.kernel.org/stable/c/2afc2d5098866518a…
https://git.kernel.org/stable/c/c058786b09cfab080…
https://git.kernel.org/stable/c/8709c66e665a2a091…
https://git.kernel.org/stable/c/2c1fb2335f5e3afb3…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < d1f8705d6545d20950991785306d08884b0056fc (git) Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < 91eb15c026debd8b7bfbd83f062e6245a4e69964 (git) Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < b09508dd7bc4a8948ea00603041a918c09788502 (git) Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < 2afc2d5098866518a5c446a2e647b1b3f43daaf4 (git) Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < c058786b09cfab080125bc3ee7928a181dcbd37a (git) Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < 8709c66e665a2a09192853d4f3d0fb4bd0f76403 (git) Affected: d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8 , < 2c1fb2335f5e3afb34f91bc07ecb63517c328090 (git)
Linux	Linux	Affected: 5.12 Unaffected: 0 , < 5.12 (semver) Unaffected: 5.15.216 , ≤ 5.15.* (semver) Unaffected: 6.1.183 , ≤ 6.1.* (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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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c"
          ],
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          "versions": [
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              "lessThan": "d1f8705d6545d20950991785306d08884b0056fc",
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              "versionType": "git"
            },
            {
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              "versionType": "git"
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              "status": "affected",
              "version": "d0e274af2f2e44b9d496f5d2c0431fdd2ea76fb8",
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          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
              "version": "6.1.183",
              "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"
            }
          ]
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      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv()\n\nmt76_connac_get_he_phy_cap routine can theoretically return NULL so\ncheck cap pointer before dereferencing it."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:33:00.744Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d1f8705d6545d20950991785306d08884b0056fc"
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        {
          "url": "https://git.kernel.org/stable/c/91eb15c026debd8b7bfbd83f062e6245a4e69964"
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          "url": "https://git.kernel.org/stable/c/b09508dd7bc4a8948ea00603041a918c09788502"
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        {
          "url": "https://git.kernel.org/stable/c/2c1fb2335f5e3afb34f91bc07ecb63517c328090"
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      ],
      "title": "wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv()",
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    "datePublished": "2026-08-10T12:02:43.950Z",
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    "dateUpdated": "2026-08-19T16:33:00.744Z",
    "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.

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GHSA-QJJF-QC2V-CVJC

CVE-2026-68309 (GCVE-0-2026-68309)

Tags

Sightings

Nomenclature